Math Practice Topic: Quadratic Graph Zeros

Description: Find solution(s) to a quadratic equation, given the graph.

Adaptive Learning Progression: The equations become harder to factor.

Sample Levels (out of 5)

Find the zeros (roots) of the following functions. Whenever there are multiple answers, separate them with commas. Example: 1,3

1.
y = x 2 - 12x - 13
x =

Find the zeros (roots) of the following functions. Whenever there are multiple answers, separate them with commas. Example: 1,3

1.
y = x 2 + 15x + 14
x =
2.
y = - 3x 2 - 42x - 147
x =
3.
y = x 2 + 21x + 38
x =
4.
y = -x 2 - 6x - 9
x =

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