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Write the equation of the line, in y = mx + b form, that passes through the points (-2, -15) and (5, 13). Show how you arrived at the values of m and b.

1 Answer

6 votes

Answer:

y = 4x - 7

Explanation:

Finding the slope:


(13+15)/(5+2)=(28)/(7)=\boxed{4}

The slope is 4.

Finding the y-intercept:


y=4x+b\\\\13=4(5)+b\\\\13=20+b\\\\13-20=20-20+b\\\\\boxed{-7=b}

The equation is
y=4x-7.

Hope this helps.

User Bala Anirudh
by
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