Question

Plz help inequalities..

Answer 1

Sketch the curve.

Answer 2

so after i multiplied em i got \[x ^{3}-16x ^{2}+79x-120\]

Answer 3

Have you sketched the curve? Because it would help you understand inequalities.

Answer 4

You don't multiply anything.

Answer 5

oh

Answer 6

You just sketch it as it is now. You have the three x-intercepts.

Answer 7

5, 3 and 8?

Answer 8

So you plot them and then to see how the curve starts from one end, you plug in an x-value that isn't an x-intercept and see whether you get a negative or positive y-coordinate. That will determine how the curve starts, whether from the negative side or positive side.

Answer 9

So let's plot the easiest x-value you can possibly have which is 0.

Answer 10

When you put that in, what number do you get?
\[(0-5)(0-3)(0-8)=?\]
Do you get a negative number or positive number?

Answer 11

oh i know how to do this