Front

What are systems of linear equations?

Back

A set of two or more linear equations in the same variables.

Front

If a system of equations has no solution, what does the graph look like?

Back

Parallel lines.

Front

Which of the following shows the solution to the system: y= -1/4x + 4 and y = 2x + 2?

Back

A

Front

Find the equation of the line in slope-intercept form: y = ?

Back

y = 1/3x - 3.

Front

What is the solution to the system of equations?

Back

(1, -1).

Front

What is a linear equation?

Back

An equation that makes a straight line when graphed.

Front

What does the slope of a line represent?

Back

The rate of change of y with respect to x.

Front

What is the y-intercept of a line?

Back

The point where the line crosses the y-axis.

Front

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

Back

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

Front

What does it mean for two lines to be perpendicular?

Back

Their slopes are negative reciprocals of each other.