Unit 4 Post Test Activity

Front

Simplify: (10 + 15i) - (48 - 30i)

Back

-38 + 45i

Front

What is the height of the toy after 1 second if h = -2t^2 + 7t + 4?

Back

9

Front

What is i^79?

Back

-i

Front

Solve using the Quadratic Formula: x^2 + 4x - 40 = -8

Back

-8 & 4

Front

Simplify: 6√{-75}

Back

30i√{3}

Front

What is the 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 imaginary unit 'i'?

Back

The imaginary unit 'i' is defined as the square root of -1.

Front

What is the Quadratic Formula?

Back

The Quadratic Formula is given by x = (-b ± √(b² - 4ac)) / (2a) for a quadratic equation ax² + bx + c = 0.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form, combining like terms and eliminating unnecessary parts.

Front

What is the standard form of a quadratic equation?

Back

The standard form of a quadratic equation is ax² + bx + c = 0, where a, b, and c are constants.