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Home > CAAC > Chapter 8 > Lesson 8.3.2 > Problem 8-108

8-108.
  1. Find the equation of each parabola below based on the given information. Homework Help ✎

    1. graph

    2. x

      −4

      −3

      −2

      −1

      0

      1

      2

      3

      4

      y

      12

      5

      0

      −3

      −4

      −3

      0

      5

      12

x-intercepts at (−3,0) and (1,0).

x = −3 or x = 1
x + 3 = 0 or x − 1 = 0
(x + 3)(x − 1) = 0

At the x-intercept, y = 0.

y = (x + 3)(x − 1) or y = x² +2x − 3

Use the same strategy as part (a) to solve part (b).