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