SOLUTION: whta is the equation for y=mx+b, when y=8 and x=1 y=18, x=3

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Question 627359: whta is the equation for y=mx+b, when y=8 and x=1 y=18, x=3
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Ordered pairs (x,y)

(3,18)

(1,8)  m = 10/2 = 5

 y = mx + b

 y = 5x + b

 8 = 5 + b     || using order pair (x,y): (1,8) to solve for b

 3 = b

 y = 5x + 3