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Home > CCA > Chapter 11 > Lesson 11.2.3 > Problem 11-69

  1. Based on the graph, give a possible equation for the parabola. 11-69 HW eTool (Desmos). Homework Help ✎

For additional help, see problem 11-13.

The x-coordinates of the x-intercepts are roots of the equation. If you know the roots, can you find the factors?

The factors are (x − 0) and (x − 4).

y = x(x − 4)

See the hints in part (a).

Instead of using fractions, multiply each factor by the fraction's denominator.

The factors can be written as
(2x + 1) and (2x − 3).

Use the eTool below to help you with this problem.
Click the link at right for the full version of the eTool: CCA 11-69 HW eTool