Unit 5B Test Review

Front

What is the vertex form of a quadratic equation?

Back

Front

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

Back

The maximum or minimum value of a quadratic function occurs at the vertex. If the parabola opens upwards (a > 0), it has a minimum; if it opens downwards (a < 0), it has a maximum.

Front

What is the discriminant in a quadratic equation?

Back

Front

What does a negative discriminant indicate about the roots of a quadratic equation?

Back

A negative discriminant indicates that the quadratic equation has no real solutions; the solutions are complex.

Front

What is the solution to the equation (n + 7)(n + 9) = 0?

Back

The solutions are n = -7 or n = -9.

Front

In the context of quadratic inequalities, what does the shaded area represent?

Back

The shaded area represents the set of solutions that satisfy the inequality.

Front

What is the significance of the vertex in a quadratic function?

Back

The vertex represents the highest or lowest point of the parabola, depending on whether it opens upwards or downwards.

Front

How can you find the x-intercepts of a quadratic function?

Back

The x-intercepts can be found by setting the quadratic equation equal to zero and solving for x.

Front

What is the general form of a quadratic equation?

Back

Front

What does it mean for a quadratic function to have two real solutions?

Back

It means that the graph of the function intersects the x-axis at two distinct points.