Equations and Linear Functions Review

Front

What is the equation of a horizontal line?

Back

y = c, where c is a constant.

Front

What is the equation of a vertical line?

Back

x = c, where c is a constant.

Front

Define slope in the context of a linear function.

Back

Slope is the ratio of the rise (change in y) to the run (change in x) between two points on a line.

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 the y-intercept represent in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis (x=0).

Front

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

Back

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

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet and have the same slope.

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees) and have slopes that are negative reciprocals.

Front

Identify the standard form of a linear equation.

Back

Ax + By = C, where A, B, and C are integers.

Front

What is the relationship between the slopes of parallel lines?

Back

The slopes of parallel lines are equal.