Algebra 2 Review Fall sem

Front

What type of line is represented by the equation x = -3?

Back

Vertical line.

Front

Solve the inequality: |x + 3| > 8

Back

x > 5 or x < -11.

Front

What color represents a graph that has no real zeros?

Back

Green.

Front

Calculate (2 + 3i)².

Back

-5 + 12i.

Front

What is the solution to the inequality |x + 3| > 8?

Back

x > 5 or x < -11.

Front

Define a vertical line in algebra.

Back

A vertical line is a line that goes straight up and down and is represented by an equation of the form x = a.

Front

What does the absolute value symbol |x| represent?

Back

The distance of x from 0 on the number line.

Front

How do you solve an absolute value inequality?

Back

Split it into two separate inequalities and solve each one.

Front

What is a complex number?

Back

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

i is defined as the square root of -1.