DIS Alg Quadratics Solution, Vocab, and Transformations Test Rev

Front

Solve using any method: x² - 14x = -10

Back

x=7±√39

Front

How many solutions does f(x) = 2x² + 12x + 16 have?

Back

2

Front

What is the starting height of a ball that follows the path y = -16x² + 8x + 5?

Back

5 ft

Front

How long after jumping is the lizard back on the water? h = -12t² + 6t

Back

0.50 seconds

Front

Change the equation into standard form: y = -(x + 4)² – 6

Back

y=-x²-8x-22

Front

What is the vertex of the parabola represented by y = -x² + 4x + 1?

Back

(2, 5)

Front

What does the discriminant tell you about the solutions of a quadratic equation?

Back

It indicates the number of real solutions: >0 (two solutions), =0 (one solution), <0 (no real solutions).

Front

What is the standard form of a quadratic equation?

Back

y = ax² + bx + c

Front

What is the axis of symmetry for the parabola y = 3x² - 12x + 7?

Back

x = 2

Front

How do you find the maximum or minimum value of a quadratic function?

Back

Use the vertex formula x = -b/(2a).