Question

Given the slope of the line containing the points (-3,1) and (a,-14) is -5/3, find the value of a.​

Answer 1

a=6

Explanation:

write the equation as y=mx+b

y=-5/3x+b

solve for b

1=-5/3*-3+b

1-5=b

b=-4

Plug in -14 and solve for x

-14=-5/3x-4

-10=-5/3x

30/5=x

x=6 (x is basically a because a is the x coordinate)