Question

Which is the graph of the function f(x)=x^3-x^2-17x-15?

Answer 1

The graph shown below.

Explanation:

Evaluating f(0), you find it is -15. The only graph that has that y-intercept is the second one.

Answer 2

second graph

Explanation:

f(x)=x^3-x^2-17x-15

To graph the function f(x), we find the y intercept first

Replace x with 0

f(x)=x^3-x^2-17x-15

f(0)= 0^2-0^2-17(0)-15

f(0)= -15

y intercept is (0,-15)

first graph has y intercept (0,-5)

second graph has y intercept (0,-15)

Third graph has y intercept (0,15)

fourth graph has y interept (0,5)

So second graph is the graph of f(x)