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31 votes
31 votes
Write an equation of the line (-8, -5) (-3, 10)

User Alecwhardy
by
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1 Answer

9 votes
9 votes

Answer:

y = 3x + 19

Explanation:

1) Compute the slope (Slope =
(y_(2)-y_(1) )/(x_(2)-x_(1) ))

m =
(10 - (-5))/(-3-(-8))

2) Refine

m = 3

3) Plug the slope (3) into y = mx + b

y = 3x + b

4) Plug in (-8,-5), x = -8, y = -5

-5 = 3(-8) + b

5) Isolate b

b = 19

6) Construct the line equation y = mx + b

y = 3x + 19

User SleepNot
by
2.6k points