SOLUTION: Find a function whose graph is the line segment joining the points (-2, 7) and (1, -2) f(x) = ? Thanks! Appreciate the help!

Algebra ->  Equations -> SOLUTION: Find a function whose graph is the line segment joining the points (-2, 7) and (1, -2) f(x) = ? Thanks! Appreciate the help!      Log On


   

Question 197817: Find a function whose graph is the line segment joining the points (-2, 7) and (1, -2)
f(x) = ?
Thanks! Appreciate the help!
Answer by arallie(162) About Me  (Show Source):
You can put this solution on YOUR website!
Find a function whose graph is the line segment joining the points (-2, 7) and (1, -2)
f(x) = ?
f%28x%29=-3x%2B1
y=mx%2Bb
m=%28y%5B1%5D-y%5B2%5D%29%2F%28x%5B1%5D-x%5B2%5D%29
m=%28%287%29-%28-2%29%29%2F%28%28-2%29-%281%29%29
m=-%289%2F3%29=-3
%287%29=-3%28-2%29%2Bb
7=6%2Bb
b=1
%28-2%29=-3%281%29%2B1
-2=-3%2B1
-2=-2
y=-3x%2B1