Slope from Two Points

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

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

Calculate the slope of the line that passes through the points (1, 2) and (3, 4).

Back

1

Front

Calculate the slope of the line that passes through the points (2, 3) and (2, 5).

Back

undefined

Front

If the slope of a line is positive, what does this indicate about the direction of the line?

Back

The line rises from left to right.

Front

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

Back

The line falls from left to right.

Front

Find the slope of the line that passes through the points (4, 5) and (6, 9).

Back

2

Front

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

Back

1

Front

What is the slope of a line that is perfectly vertical?

Back

The slope is undefined.