SOLUTION: Find a function whose graph is the line segment joining the points (-7, -4) and (14, 7) f(x) = ? Thanks! Appreciate the help!

Algebra ->  Equations -> SOLUTION: Find a function whose graph is the line segment joining the points (-7, -4) and (14, 7) f(x) = ? Thanks! Appreciate the help!      Log On


   

Question 197818: Find a function whose graph is the line segment joining the points (-7, -4) and (14, 7)
f(x) = ?
Thanks! Appreciate the help!
Answer by arallie(162) About Me  (Show Source):
You can put this solution on YOUR website!
y=mx%2Bb
m=%28y%5B1%5D-y%5B2%5D%29%2F%28x%5B1%5D-x%5B2%5D%29 when (-7,-4) (14,7)
m=%28%28-4%29-%287%29%29%2F%28%28-7%29-%2814%29%29
m=-11%2F-21
m=11%2F21
%28-4%29=%2811%2F21%29%28-7%29%2Bb
-4=-%2811%2F3%29%2Bb
b=-%281%2F3%29=-0.33333333333333333333333333333333
%287%29=%2811%2F21%29%2814%29-%281%2F3%29
7=%2822%2F3%29-%281%2F3%29
7=%2821%2F3%29
7=7
y=%2811%2F21%29x-%281%2F3%29