Finding Slope from Two Points

Front

What is the formula to find the slope (m) between two points (x1, y1) and (x2, y2)?

Back

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

Front

Find the slope of the line that passes through the points (2, 3) and (4, 7).

Back

m = (7 - 3) / (4 - 2) = 4/2 = 2

Front

What does a slope of 0 indicate about a line?

Back

A slope of 0 indicates that the line is horizontal.

Front

What does an undefined slope indicate about a line?

Back

An undefined slope indicates that the line is vertical.

Front

Find the slope of the line that passes through the points (1, 2) and (1, 5).

Back

Undefined (vertical line)

Front

If the slope of a line is negative, what does that indicate about the direction of the line?

Back

The line decreases from left to right.

Front

Find the slope of the line that passes through the points (3, 4) and (3, 4).

Back

0 (the same point, no slope)

Front

What is the slope of a line that is increasing?

Back

Positive slope.

Front

Find the slope of the line that passes through the points (0, 0) and (5, 5).

Back

m = (5 - 0) / (5 - 0) = 1

Front

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

Back

Undefined (vertical line)