Question

How would I go about graphing f(x)=x^3-4x^2-3x+18

Answer 1

Perhaps you could find the zeros using synthetic division. Use the principle of dominance to find that the graph enters in the third quadrant and exits in the first quadrant and make the sketch.

Answer 2

Indeed! So to do the synthetic division, I'd do the Possible Solution Set thing first, right (factors of last (so 18) over factors of first (1))?

Answer 3

yep

Answer 4

Did you find a root yet?

Answer 5

No, I'm still working. I;ll let you know when I do

Answer 6

Hint: try 3 on the shelf

Answer 7

Sweet, will do!

Answer 8

No luck using 3... am I doing it wrong?