Creating Quadratic Mathematical Models

• y-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

• x-intercept

• y-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

• x-intercept

• y-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

• x-intercept

• y-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

• x-intercept

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Which function best models the data?

A baseball coach records the height at every second of a ball thrown in the air. Some of the data appears in the table. Which equation is a quadratic model for the data?

TEK A.8 (B)

• d(x) = 0.05x² + 0.74x

• d(x) = 0.05x² + 0.74x + 9.17

• d(x) = 0.26x² – 3.11x

• d(x) = 0.26x² – 3.11x + 1

• x-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

• x-intercept

• y-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

• x-intercept