Review for Unit 5 Test

Front

What is the slope of the line represented by the equation y = -2?

Back

The slope is 0.

Front

Simplify the expression 3√20 + 4√5.

Back

The simplified form is 10√5.

Front

Which type of line runs parallel to the x-axis?

Back

Horizontal line.

Front

How is finding the length of segment AB written in the distance formula?

Back

d = √((5-3)² + (0--2)²)

Front

What is the distance between the points (-5, 5) and (1, -2)?

Back

The distance is 9.2.

Front

What is the definition of a horizontal line?

Back

A horizontal line is a straight line that runs left to right and has a slope of 0.

Front

What is the distance formula?

Back

The distance formula is d = √((x2 - x1)² + (y2 - y1)²).

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and never intersect.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

The slope is calculated as m = (y2 - y1) / (x2 - x1).