SOLUTION: Can someone help me on this problem? I need to graph f(x) = -3x-2 Could someone show me what the graph looks like? I sure would appreciate it allot. Thanks,

Algebra ->  Coordinate-system -> SOLUTION: Can someone help me on this problem? I need to graph f(x) = -3x-2 Could someone show me what the graph looks like? I sure would appreciate it allot. Thanks,       Log On


   



Question 59697: Can someone help me on this problem?
I need to graph

f(x) = -3x-2
Could someone show me what the graph looks like?
I sure would appreciate it allot.
Thanks,
Sher

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Hi Sher,
I need to graph

f(x) = -3x-2
Notice that this is a linear function. It is graphed the same way you would graph: y=-3x-2. f(x) and y mean the same thing, it's just a different notation.
:
Let x=0
f(0)=-3(0)-2
f(0)=0-2
f(0)=-2 Plot (0,-2)
:
Let x=2 (you can pick anything for x by the way, why don't you pick a couple of other numbers, and you'l find that they fall on the line as well)
f(2)=-3(2)-2
f(2)=-6-2
f(2)=-8 Plot (2,-8)
With linear functions, you only need two points to make a graph unless otherwise specified. Connect the points and you have this line.
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C-3x-2%29
Happy Calculating, Sher!!!