Graphing Quadratic Functions Quiz (5 Questions)

1. Find the vertex of f(x) = x² − 6x + 8

2. Does f(x) = −2x² + 4x + 1 open up or down?

3. Find the axis of symmetry: f(x) = 3x² − 12x + 7

4. True or False: Roots are points where f(x) = 0

5. Sketch the parabola of f(x) = x² − 2x − 3 (describe key points)

Answer Key

1. Vertex at (3, −1)

2. Down

3. x = 2

4. True

5. Vertex at (1, −4), roots at x = −1 and x = 3