Calculating Slope of a Line

Front

What is the slope of a vertical line?

Back

Undefined

Front

What is the slope of a horizontal line?

Back

0

Front

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

Back

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

Front

If a line rises from left to right, what is the sign of its slope?

Back

Positive

Front

If a line falls from left to right, what is the sign of its slope?

Back

Negative

Front

What does a slope of 1 indicate about a line?

Back

The line rises one unit up for every one unit it moves to the right.

Front

What does a slope of -1 indicate about a line?

Back

The line falls one unit down for every one unit it moves to the right.

Front

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

Back

m = 2

Front

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

Back

Undefined

Front

Calculate the slope of the line that passes through the points (0, 0) and (3, 6).

Back

m = 2