Stage 23 · Quadratic Functions

23.5.1 Where the Parabola Meets the x-axis

23.5 Quadratic Function × Equation × Inequality

Point 1 of 5

23.5.1 Where the Parabola Meets the x-axis

Core idea

The spots where the bowl touches the ground are the x-values when y=0, which are exactly the roots of the quadratic equation.

Module goal. Connect the parabola's relationship with the x-axis to the roots of a quadratic equation and the solution set of a quadratic inequality.
eastmath.com · 23.5 Quadratic Function × Equation × Inequality · 23.5.1 Where the Parabola Meets the x-axis