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Home > CCA2 > Chapter 2 > Lesson 2.2.3 > Problem 2-128

2-128.

For each equation below, find the x- and y-intercepts and the locator point (h, k), then write the equations in graphing form. Homework Help ✎

  1. y-intercept:

    x-intercept:

    Since there is only one x-intercept, the vertex must be at the x-intercept.

    y-intercept: (0, 2)
    x-intercept: (−1, 0)
    vertex: (−1, 0)

  2. Start by finding the x- and y-intercepts.

    To find the x-coordinate of the vertex,
    average the x-intercepts.

    To find the y-coordinate of the vertex, substitute the
    x-coordinate of the vertex into the given equation and solve for y.

    Now write the equation in graphing form.