Chapter 3 Review

Front

What is the slope of a line perpendicular to a line with slope -6/5?

Back

5/6

Front

What do the equations y=3x+2 and y=3x-3 represent?

Back

parallel lines

Front

What are the slopes of perpendicular lines?

Back

opposite reciprocals

Front

Write the equation of a line PERPENDICULAR to y = 9x + 5 that passes through the point (18,4).

Back

y=-\frac{1}{9}x+6

Front

If ∠2 is supplementary to ∠3, what can be said about line a and line b?

Back

Line a is parallel to line b.

Front

Define slope in the context of a linear equation.

Back

Slope is the measure of the steepness of a line, calculated as the rise over run.

Front

What is the relationship between the slopes of parallel lines?

Back

The slopes of parallel lines are equal.

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Slope = (y2 - y1) / (x2 - x1).

Front

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

Back

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

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.