SOLUTION: How do you find y when given (5,2) (2,y) and the slope is 3? I got: y=3(-5/2)+2 -15/6+2= -17/6?

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Question 372689: How do you find y when given (5,2) (2,y) and the slope is 3?
I got: y=3(-5/2)+2

-15/6+2= -17/6?
Found 2 solutions by Fombitz, ewatrrr:
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
You used the slope intercept form of a line but you don't know the intercept.
Use the formula for slope.
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!


Hi,

find y when given (5,2) (2,y) and the slope is 3

slope = 3 = 3/1  as y increases or decreases by 3, x increases or decreases by 1

Here, x has decreased by 3, therefore,y has decreased by 9 (3/1 = 9/3)

(5,2)   (5,2) 

(2,y)   (2,-7)

y = -7



 

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