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Home > INT3 > Chapter 8 > Lesson 8.3.1 > Problem 8-103

8-103.
  1. Sketch the graphs of each of the following polynomial functions. Be sure to label the x‑ and y‑intercepts. Homework Help ✎

    1. y = x(2x + 5)(2x – 7)

    2. y = (15 – 2x)2(x + 3)

Determine the x-intercepts using the Zero Product Property.

Use your graphing calculator to check your graph.

This is a cubic function, but there are only two x-intercepts because on of the factors in squared. This factor creates a double root.