SOLUTION: How do you graph f(x)=-5x and f(x)=1/2x + 4 Pleas show me the steps on solving these problems. Thanks

Algebra ->  Functions -> SOLUTION: How do you graph f(x)=-5x and f(x)=1/2x + 4 Pleas show me the steps on solving these problems. Thanks      Log On


   

Question 473864: How do you graph f(x)=-5x and f(x)=1/2x + 4
Pleas show me the steps on solving these problems.
Thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How do you graph f(x)=-5x
Plot 2 points and draw a line thru them.
If x = 0, y = -5*0 = 0
If x = 1, y = -5*1 = -5
----
Plot (0,0) and (1,-5) to get:
graph%28400%2C400%2C-10%2C10%2C-10%2C10%2C-5x%29
------------------------------------------------------------------------
f(x)=(1/2)x + 4
If x = 0, y = (1/2)*0+4 = 4
If x = 2, y = (1/2)2+4 = 5
--------------------------------
Plot (0,4) and (2,5) to get:
graph%28400%2C400%2C-10%2C10%2C-10%2C10%2C%281%2F2%29x%2B4%29
============================
Cheers,
Stan H.