Quadratics Unit 3 Test

Front

What is the axis of symmetry in a parabola?

Back

The imaginary line that divides the parabola in half.

Front

Identify the 'b' value in the equation y = 16x² - 8x - 24.

Back

-8

Front

What are the solutions of the quadratic equation x² + 2x - 15 = 0?

Back

x = -5 or x = 3

Front

How many solutions does the quadratic function have if the discriminant is zero?

Back

One

Front

What is the equation for the axis of symmetry for the parabola y = ax² + bx + c?

Back

x = -b/(2a)

Front

What is the vertex of a parabola?

Back

The highest or lowest point of the parabola.

Front

What does the 'a' value in a quadratic equation y = ax² + bx + c determine?

Back

The direction and width of the parabola.

Front

What is the discriminant in a quadratic equation?

Back

The value calculated as b² - 4ac, which determines the number of solutions.

Front

If the discriminant is positive, how many solutions does the quadratic equation have?

Back

Two solutions.

Front

If the discriminant is negative, what does it indicate about the solutions of the quadratic equation?

Back

No real solutions.