SOLUTION: if the slope of a line is 3/2 and the line contains the points (5,9) and (3,a) what is the value of a

Algebra ->  Linear-equations -> SOLUTION: if the slope of a line is 3/2 and the line contains the points (5,9) and (3,a) what is the value of a       Log On


   

Question 670801: if the slope of a line is 3/2 and the line contains the points (5,9) and (3,a) what is the value of a
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
m = (y2 - y1)/(x2 - x1)

3/2 = (a - 9)/(3-5)

3/2 = (a - 9)/(-2)

3*(-2) = 2(a - 9)

-6 = 2(a - 9)

-6/2 = a - 9

-3 = a - 9

a - 9 = -3

I'll let you finish.