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satela [25.4K]
3 years ago
10

What is the equation for the line that passes through the points (-2,1) and (1,-11)

Mathematics
1 answer:
givi [52]3 years ago
8 0

Answer:

y=4x+7

Step-by-step

(-2,1) and (1,-11)

1)Rule you should use is run over rise aka slope

y²-y^1=

x^2-x^1=

(-11)-1=12

1-(-2)=3

12/3=4

slope =4

2)Rule of point slope intercept

y - y1 = m(x - x1)

y+1=4(x+2)

y+1=4x+8

   -1     -1

y=4x+7

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Marina86 [1]

The x values are the domain and they y values are the range. So the domain is {-2, 0, 2}. And the range is {-1, 0, 1}. So B is the answer.

4 0
3 years ago
The circle above has an area of 144 pi cm^2. What is the area of the blue sector? Use 3.14 for pi.
sineoko [7]

Answer:

150.72 cm^2

Step-by-step explanation:

The blue area has an angle of 120 degrees, and 120/360 = 1/3, which shows that the blue area is 1/3 of the circle. In that case, the blue area is just 144pi/3. That simplifies to 48 pi.

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3 years ago
For each formula,rearrange so a is by itself:
vichka [17]

Step-by-step explanation:

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First:Subtract

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Second: Devide

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2 years ago
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Anna11 [10]

Answer:

381

Step-by-step explanation:

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Good luck!

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3 years ago
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