How To Graph Polynomial Functions?

Write the polynomial in standard form

Identify the degree and leading coefficient

Determine the end behavior from the degree and leading coefficient

Find the y-intercept by evaluating the function at x = 0

Find the x-intercepts by setting the polynomial equal to 0

Factor the polynomial if possible

Use the multiplicity of each zero to determine how the graph behaves at each x-intercept

Find additional points by choosing x-values and evaluating the function

Plot the intercepts and additional points on a coordinate plane

Sketch the graph using the end behavior and the plotted points

Check for symmetry if applicable

Verify the graph matches the degree, intercepts, and multiplicities

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