Linear Review

Front

What is the slope of a horizontal line?

Back

0

Front

What is the slope of a vertical line?

Back

Undefined

Front

What is the slope formula?

Back

(y2 - y1) / (x2 - x1)

Front

What does a positive slope indicate?

Back

The line rises from left to right.

Front

What does a negative slope indicate?

Back

The line falls from left to right.

Front

What is the y-intercept in the equation of a line?

Back

The point where the line crosses the y-axis.

Front

What is the equation of a line in slope-intercept form?

Back

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

Front

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

Back

Use the formula (y2 - y1) / (x2 - x1).

Front

What is the equation of a line with slope -3 and y-intercept 2?

Back

y = -3x + 2

Front

What is the slope of the line represented by the equation y = 4x + 3?

Back

4