Unit 3 Graphing Equations Review

Front

What is the slope of a line parallel to the line whose equation is: -2x + y = -7?

Back

The slope is 2.

Front

If two lines have slopes of -2/3 and 3/2, what relationship do they have?

Back

They are perpendicular.

Front

What is the y-intercept of the line represented by the equation y = -2/3x + 2?

Back

The y-intercept is 2.

Front

What slope is perpendicular to m = 5/8?

Back

The perpendicular slope is -8/5.

Front

Write the equation for the line that passes through the points (1, 2) and (3, 6).

Back

The equation is y = 2x.

Front

What is the definition of slope?

Back

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

Front

How do you find the y-intercept from the equation of a line in slope-intercept form?

Back

The y-intercept is the value of y when x = 0.

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 formula for finding the slope between two points (x1, y1) and (x2, y2)?

Back

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

Front

What is the slope of the line represented by the equation y = 4x + 1?

Back

The slope is 4.