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

x-3
x-1
x+1
x+3

Option A.

Step-by-step explanation:

If graph of a polynomial intersects the x-axis at x=c, where c is a constant, then (x-c) is a factor of that polynomial.

We need to find the factor of the polynomial function f(x) graphed on the coordinate plane.

From the given graph it is clear that graph of f(x) intersects the x-axis at x=3. It means (x-3) is a factor of f(x).

Therefore, the correct option is A.

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