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3 years ago

Աuestion 4

Mathematics

1 answer:

anastassius [24]3 years ago

4 0

Answer:

The answer is: The y intercept form is: y = -2x - 7. The point slope form is:

y + 7 = -2(x - 0)

Step-by-step explanation:

The equation to find the slope is:

m = (y - y1) / (x - x1)

Substitute in the given points (-5, 3) and (0, -7)

m = (3 - (-7)) / (-5 - 0)

m = (3 + 7) / -5

m = 10/-5 = -2

Now use the slope to form the intercept form of the equation, from the point-slope form:

y - (-7) = -2(x - 0)

y + 7 = -2x

y = -2x - 7

Proof:

Use (-5, 3) substitute -5 for x and verify that the answer is 3:

f(-5) = -2(-5) - 7 = 10 - 7 = 3

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