Question

Which statement best describes the graph of -x^3 - x^2 + 4x + 4?

It starts down on the left and goes up on the right and intersects the axis at x = -2, 2, and 4.

It starts down on the left and goes up on the right and intersects the axis at x = -2, -1, and 2.

It starts up on the left and goes down on the right and intersects the x-axis at x = -2, -1, and 2.

It starts up on the left and goes down on the right and intersects the axis at x = -2, 2, and 4.

Answer 1

@campbell_st

Answer 2

@CGGURUMANJUNATH

Answer 3

well simply substitute the x values to find which ones give y = 0

remember that if x = -2 is a zero then (x - 2) is a factor

so looking at the 1st choice

x = -2 (x +2) x = 2 so (x - 2) and x = 4 so (x - 4)

then the product of 2, -2 and -4 needs to be 4 from the equation these multiply to 16

an alternate method is to graph the equation using software... https://www.desmos.com/calculator

when you type it in start with y = ... your equation...

match what you see to the answers