Algebra 2

What is the equation of a line with slope -2/7 and intercept (0, -1)?

A) y = -2/7x

B) x = -2/7y - 1

C) y = -1

D) y = -2/7x - 1


Please show work so I can understand.

Answers

Answer 1
It’s always gonna be y=. That is a given in all equations. The slope would be before the x and after the =. And if the first number in parentheses is a 0 then the y-intercept will be the second number. If it’s positive it’s plus and if it’s negative it’s minus
Answer 2

Answer:

D

Step-by-step explanation:

Recall the slope-intercept form of a line:

y = mx + b

slope -2/7 means m = -2/7

y = -2/7x + b

Intercept at (0, -1)

x = 0 and y = -1.

Hence, let's plug it back into the equation we made earlier (y = -2/7x + b)

(-1) = -2/7(0) + b

-1 = b

b must be -1

y = -2/7x -1


Related Questions

which of the following rational numbers is equal to 2.4 repeating?
22/9, 24/9, 26/9, 28/9

Answers

The answer would be 22 over 9. I hope this helps with the test

Answer:

22/9

Step-by-step explanation: I had this answer and got it right.

The length of the base on an
isosceles triangle is 5x. The length of
a leg is 6x + 8. The perimeter of the
triangle is 107. Find the length of the
base.

Answers

Answer:

455/17 or 26 13/17

Step-by-step explanation:

Since the triangle is an isosceles triangle the legs are the same length.

2(6x+8) + 5x= Perimeter

12x+16+5x= Perimeter

Perimeter =107

17x=107-16

17x=91

x=91/17

Since we are trying to find the base which is 5x, we can substitute.

5*91/17= 455/17 or 26 13/17

Part A
The cost of having one pizza delivered is $14. Each additional pizza costs $9 more. Choose the explicit formula to represent the situation.

A. an = 14 + 9(n + 1)
B. an = 5 + 9n
C. an = 14 + 9n
D. an = 5 + 9(n + 1)
Part B
The cost of having one pizza delivered is $14. Each additional pizza costs $9 more. Choose the recursive formula to represent the situation.

A. an = an – 1 + 5; a1 = 14
B. an = an – 1 + 23; a1 = 9
C. an = an – 1 + 14; a1 = 9
D. an = an – 1 + 9; a1 = 14

Answers

Answer: C

For part b, the answer is also C.

Step-by-step explanation:

14 Is the rate for the first pizza, then add 9 per pizza after that, so an=14+9n

Cash register contains only five dollar and ten dollar bills. Contains twice as many five's as ten's The total amount of money in the cash register is $720. How many tens are in the cash register? 

Answers

Answer: 36

Step-by-step explanation:

5x + 10y = 720

y=1/2x

tens = 36

Solve the inequality:


11x+12≥45

Select one:

x>3

x≤3

x<3

x≥3

Answers

Answer:

ALL OF THEM

Step-by-step explanation:

Answer:

x≥3

Step-by-step explanation:

subtract 12 from each side

11x≥33

divide by 11

x≥3

need help with this. its very hard and i dont know what to do and my work is due at 11:59 pm today .

Answers

Answer:

125°

Step-by-step explanation:

Sum of all the internal angles in a triangle is 180°

So, we have,

67°+58°+ Adjacent angle of 1 = 180°

125°+Adjacent angle of 1 = 180°

Adjacent angle of 1 = 180° - 125° = 55°

Angle 1 and its adjacent angle are supplementary

So, Angle 1 + Adjacent angle of 1 = 180°

Angle 1 + 55° = 180°

Angle 1 = 180° - 55° = 125°


HURRY I HAVE 5 MINUTES LEFT!!!!

Which expression has a positive quotient?

-3/4 and -2/3

-1/8 and 3 1/5

2 2/7 and -1-5

-6 and 5/3

Answers

the answer is -3/4 and -2/3

Answer:

Two negatives or two positives= positive

one negative and positive=negative

Step-by-step explanation:

-3/4 and -2/3 positive

-1/8 and 3 1/5 negative

2 2/7 and  -1/5 negative

-6 and 5/3 negative

if measure of angle TAR and angle RAP are complementary angles where m < TAR is 3 times m

Answers

Just multiply the triangle times three

What is 2+2+5+4753%-474\3674

Answers

Answer:

54.4009853

Step-by-step explanation:

Simplify each term.  

2 + 5 +47.53 − 237 /1837

Find the common denominator.

2 ⋅ 1837 /1837 + 5 ⋅ 1837 /1837 + 47.53 ⋅ 1837/1837 − 237 /1837

Combine fractions.

3674 + 9185 + 87312.61 − 237 /1837

Simplify the numerator.

99934.61 /1837

Divide  99934.61  by  1837 .

=54.4009853

The speed limit on a road is 45 miles per hour. What is this rate in miles per​ minute?

Answers

1 hour = 60 minutes

Divide miles per hour by 60 minutes:

45/ 60 = 0.75 miles per minute

If you need the answer as a fraction 0.75 = 3/4 miles per minute.

NEED HELP AND FAST IM ONLINE WITH MY TEACHER
Daniel worked for 2 1/3 hours and earned $18.20.

How much would he make if he worked for 5 1/4 hours?

Answers

Answer:

2 1/3hrs→ $18.20

1 hr→ $7.80

5 1/4hrs→ $7.80x5 1/4= $40.95

Step-by-step explanation:

here u go pls make me brainliest

Answer:

just above 41 dollars but since there is only two decimals $41.00

Step-by-step explanation:

What is the range of f

Answers

Step-by-step explanation:

The set of all output values of a function. Example: when the function f(x) = x2 is given the values x = {1,2,3,...} then the range is {1,4,9,...}

Sharon has 10 ½ gallons of paint. She plans on using 1 ½ gallons to paint each room in her house. How many rooms will she be able to paint if she shares the paint equally in each room?

Answers

Answer:

3 rooms can be fully painted if the paint is shared equally.

As well as 2/3 of another room.

Step-by-step explanation:

Sharon has 10 ½ gallons of paint. She plans on using 1 ½ gallons to paint each room in her house.

Hence:

1 ½ = 1 room

10 ½ = x

Cross Multiply

x × 1 ½ = 10 ½ × 1

x = 10 ½ × 1/1 ½

x = 11/2 ÷ 3/2

x = 11/2 × 2/3

x = 11/3

x= 3 2/3 rooms

How many rooms will she be able to paint if she shares the paint equally in each room?

Hence, she will be able to paint 3 rooms fully as well as 2/3 of another room.

On a flight from New York to London, an airplane travels at a constant speed. An equation relating the distance traveled in miles, d, to the number of hours flying t, is t = 1/500 d. how long will it take the airplane to travel 800 miles.

Answers

Answer:

Step-by-step explanation:

t = 1/500d....when d = 800

t = (1/500 * 800)

t = 800/500

t = 1.6 hrs <==

Pls help! I’m giving out brainliest to the first person who answers!

Answers

Answer:

1=137

2=43

3=137

4=43

5=43

6=137

7=43

8=137

PLZ HELP THIS IS COMPLICATED!!!

Answers

Answer:

The closet one is 5 mi

Step-by-step explanation:

Its correct

mark the x intercepts in red and mark the y intercepts in blue: which points are red and which points are blue? i will MARK AS BRAINIEST !

Answers

yes i agree with the other person

9.7814 1 decimal place

Answers

Answer:it’s the thousands place

Step-by-step explanation:

Rick bought 5 yogurt bars at a snack shop. Each yogurt bar cost $1.70.

Complete the table to show the price of 2, 3, 4, and 5 yogurt bars.

Number of Yogurt Bars Price
1 $1.70
2 $
3 $
4 $
5 $

Answers

9514 1404 393

Answer:

  see below

Step-by-step explanation:

Each table entry has $1.70 added to the previous entry.

Bars, Price

1, $1.70

2, $3.40

3, $5.10

4, $6.80

5, $8.50

What is the sum of Square root of -2 and square root of -18?

Answers

Answer:

5.65685425 i think

Step-by-p explanation:


Help please this is very hard idk what to do

Answers

Answer:b

Step-by-step explanation:

the answer is the second one

Answer:

Second graph

Step-by-step explanation:

First, solve the inequality:

Add 8 to each side, so it now looks like this: 5x ≤ -10Divide each side by 5 to cancel out the 5 next to x. It should now look like this: x ≤ -2

Find the graph the matches the solution:

First one is x ≤ 2, so it incorrectSecond one is x ≤ -2, so it is correct

I hope this helps!

A man sold two radios at Rs. 4800 each. On one he gains 20% and on the another
he loses 20% . Find the gain or loss percent in the whole transaction.

Answers

Given:

SP of first Radio = Rs. 4800

Gain% on first radio = 20%

Find:

The gain or loss percent in the whole transaction.

Solution:

We know that,

CP = (100/100 + gain% ) * SP

Hence,

⟹ CP of first Radio = (100/100 + 20) * 4800

⟹ CP of first Radio = 100 * 4800/120

⟹ CP of first Radio = Rs. 4000

Similarly,

SP = (100 - loss%/100) * CP

⟹ 4800 = (100 - 20/100) * CP of second Radio

⟹ 4800 * 100/80 = CP of second Radio

⟹ Rs.6000 = CP of second Radio

Now,

Total SP of radios = 4800 + 4800 = Rs. 9600

Total CP of radios = 4000 + 6000 = Rs. 10000.

We observe that,

CP > SP

So, a loss is occured.

⟹ Loss = CP - SP

⟹ Loss = 10000 - 9600

⟹ Loss = Rs. 400

Now,

Loss% = (Loss/CP) * 100

⟹ Loss% = 400/10000 * 100

⟹ Loss% = 4%

∴ The loss occurred in the whole transaction is 4 %.

I hope it will help you.

Regards.

Answer:

your answer is in pic siso❤❤

❤❤

Solve for v.
4(v + 2) = 20
V =

Answers

Answer:

v= 3

Step-by-step explanation:

hope this helps!

Answer:

V = 3

Step-by-step explanation:

4(v + 2) = 20               we must first distribute

4v + 8 = 20                 we subtract 8 from both sides

4v + 8 - 8 = 20 - 8      we simplify that

4v = 12                        we divide both sides by 12 to isolate v

V = 3

Question 3
10 pts
In the transformed quadratic functiong (X) = (x – 8)2 + 5, two
transformations occurred: horizontal translation to the right by 8 units
and
O Vertical translation up by 5 units
O Vertical Translation down by 5 units
Vertical stretch by a factory of 5
O Reflection over the X – axis
10t

Answers

Answer:

              Vertical translation up by 5 units

Explanation:

From vertex form of quadratic function g(x)=a(x-h)²+k  the h and k are coordinates of vertex transformed from point (0,0) which is the vertex of parental function f(x)=ax²

It means the h determines how many units we moved parental graph horizontaly (to the left  if h<0, to the right if h>0) and the k determines how many units we moved parental graph verticaly  (down if h<0, up if  h>0)

g(x) = (x - 8)² + 5  ⇒  h = 8,  k = 5

So if h and k are >0 it means the parental graph was moved to the right and up.

Which of the following equations is linear?
y= 1x1
y=2
x2 + 5 = y
y= 1

Answers

Answer:

x2 + 5 = y

Step-by-step explanation:

switch them around

y = -2x -5

this is linear

(b-1)2+2a; use a=6, and b=1

Answers

um i’m gonna go with 14 bc (1-1) is 0 and then 2+2(6) is 14. i could be wrong sorry

Solve the following equation for a number x.
Verify that your solution is correct.
-34 = 7x + 1

Answers

Answer:

-5

Step-by-step explanation:

-34=7x+1

-34 -1=7x

7x = -35

x = -5

Use the given picture and find the value of x and y

Answers

Answer:

heres your answer maybe

Step-by-step explanation:

start with this in a explanation to find your answer.

(9y+17)+(10y)+(11y-1)=the value of Y

(6x-13)cm+(4x+3)cm*divided by 18cm= the value of X

Mrs.canales class is selling frozen pizza to earn money for a field trip.For every pizza they sell they earn $5.35 .They currently have $182.90 their goal is $750.00 how many more pizzas do they need ?

Answers

Answer:

their you go cuz

Step-by-step explanation:

They still have to earn:

$750 - $182.9 = $567.1

and if they make $5.35 for every pizza sold:

$567.1 : $5.35 = 106

Answer:

They must sell 106 pizzas more.

Answer:

They must sell 106 pizzas more.

Step-by-step explanation:

They still have to earn:

$750 - $182.9 = $567.1

and if they make $5.35 for every pizza sold:

$567.1 : $5.35 = 106

Answer:

They must sell 106 pizzas more.

Paul bought a stock for $98. He sold it for $62. What was the percent markdown on the stock? Enter the missing part of the answer.

Answers

Answer:

it was a 36.73% decrease

Step-by-step explanation:

62/98 = .63265

1-.63265 = .3673

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