Unit 7 Retest

Front

What is a quadratic function?

Back

Front

What does it mean to translate a quadratic function down 2 units?

Back

Front

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

Back

To find the x-intercepts, set the quadratic function equal to zero and solve for x. The solutions are the x-intercepts.

Front

What are the zeros of a quadratic function?

Back

The zeros of a quadratic function are the values of x that make the function equal to zero. They can be found by factoring, using the quadratic formula, or completing the square.

Front

What is the quadratic formula?

Back

Front

How do you factor a quadratic expression?

Back

To factor a quadratic expression, look for two numbers that multiply to give the constant term (c) and add to give the linear coefficient (b). Then, express the quadratic as a product of two binomials.

Front

What is the vertex of a quadratic function?

Back

Front

What does it mean for a quadratic to open upwards or downwards?

Back

Front

What is the significance of the discriminant in a quadratic equation?

Back

Front

How do you solve a quadratic equation by factoring?

Back