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What is the equation of the line passing through the points (-4,3) and (2,7)?

1 Answer

12 votes

Answer:


y = (2)/(3) x + (17)/(3)

Explanation:

First, find the slope of the line:

The formula for finding the slope is:
(y_(2) -y_(1) )/(x_(2) -x_(1) )

Plug in the points:


(7 - 3)/(2 - (-4)) =
(4)/(6) =
(2)/(3)

So now the equation is y =
(2)/(3)x + b

Now solve for b by plugging in one of the points:

(2,7)

y =
(2)/(3)x + b

7 =
(2)/(3)2 + b

7 =
(4)/(3) + b

b =
(17)/(3)

So the equation will be
y = (2)/(3) x + (17)/(3)

User Dominic Jonas
by
4.9k points
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