Algebra 2, Midterm Review

Front

What does the inequality x < 4 represent on a number line?

Back

All values to the left of 4, not including 4.

Front

What is the slope of a line parallel to y = 5/7x + 2?

Back

The slope is 5/7.

Front

What does a system of equations with no solution look like on a graph?

Back

The graph shows parallel lines.

Front

What is the slope of a line perpendicular to m = 5/8?

Back

The slope is -8/5.

Front

How do you find the x-intercept of the line x - 3y = 9?

Back

Set y = 0 and solve for x, giving x = 9.

Front

How do you find the y-intercept of the line x - 3y = 9?

Back

Set x = 0 and solve for y, giving y = -3.

Front

What is the definition of a linear equation?

Back

An equation that makes a straight line when graphed.

Front

What is the standard form of a linear equation?

Back

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

Front

What does it mean for two lines to be skew?

Back

They are non-parallel lines that do not intersect.

Front

What is the definition of slope?

Back

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