Unit 4 Test

Front

Back

-7 + 12i

Front

What are the x-intercepts of the function?

Back

x = 0 and x = 4

Front

Back

±7

Front

Factor the expression: 3ab² - 5a²b + 8ab

Back

ab(3b - 5a + 8)

Front

Back

(x + 9)(x + 5)

Front

Definition of a complex number.

Back

A complex number is a number that can be expressed in the form a + bi, where a and b are real numbers and i is the imaginary unit.

Front

What is the quadratic formula?

Back

Front

Definition of x-intercept.

Back

The x-intercept is the point where a graph intersects the x-axis, meaning the value of y is zero.

Front

Back

Look for two numbers that multiply to c and add to b.

Front

What is the process to solve a quadratic equation by factoring?

Back

Set the equation to zero, factor the quadratic, and set each factor to zero to solve for x.