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UNIT
9
9.2: Solve Quadratic Equations by Graphing
21.0: Students graph quadratic functions and know that their roots are the x-intercepts.
22.0: Students use the quadratic formula or factoring techniques or both to determine whether the graph of a quadratic function will intersect the x-axis in zero, one, or two points.
23.0: Students apply quadratic equations to physical problems, such as the motion of an object under the force of gravity.

## Today's Objective

Students will be able to solve quadratic equations by graphing and inspecting the $$x$$-intercepts (roots).