Slope & Slope-Intercept Form

Front

What is the slope of a vertical line?

Back

Undefined

Front

What is the slope of a horizontal line?

Back

Zero

Front

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

Back

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

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

If a line has a positive slope, what does that indicate about its direction?

Back

The line rises from left to right.

Front

If a line has a negative slope, what does that indicate about its direction?

Back

The line falls from left to right.

Front

What does a slope of 0 mean in terms of a line's graph?

Back

The line is horizontal.

Front

What does an undefined slope mean in terms of a line's graph?

Back

The line is vertical.

Front

How would you write the equation of a line with a slope of 1 and a y-intercept of 2?

Back

y = 1x + 2 or y = x + 2

Front

What is the slope of the line that passes through the points (2, 3) and (4, 7)?

Back

Slope = (7 - 3) / (4 - 2) = 2.