Question

What must be a factor of the polynomial function f(x) graphed on the coordinate plane below?

Answer 1

Answer:   D)  x+6

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Explanation:

The x intercepts (aka roots) are where the graph crosses or touches the x axis. These locations directly correspond to help set up the factors.

The root x = -6 shows that x+6 is a factor.

Effectively, we add 6 to both sides so that we go from x = -6 to x+6 = 0.