SOLUTION: find the slope and the y-intercept f (x) = - 2x -9

Algebra ->  Graphs -> SOLUTION: find the slope and the y-intercept f (x) = - 2x -9      Log On


   

Question 217035: find the slope and the y-intercept
f (x) = - 2x -9
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
f(x) = - 2x -9
is already in the "slope-intercept" form of a line:
y = mx + b
where
m is slope
b is the y-intercept at (0,b)
.
From inspection then, we see that
m is -2
b is -9
.
Therefore:
slope is -2
and the
y-intercept is at (0,-9)