Question

Sketch the graph of f(x)=x^3+2x^2-4x-8 by hand. Make note of the end behavior and all intercepts. I am studying for a test, plz help

Answer 1

we really can sketch this for you can we? Find some points by using values for x to find the values for y and plot the points on a graph and connect the dots....

Answer 2

End behavior for polynomial\[ax ^{n}, (n \ge1)\]

Answer 3

In this case n is odd, the ends will point in different directions. (x^3 is a common function you should know how it looks.)
a>0 down on left, up on the right.

Answer 4

Intercepts, x intercepts, solve for x. Y intercept let x=0