Finding Slope from Two Points- DO NOW

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

2

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that the line rises as it moves from left to right.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that the line falls as it moves from left to right.

Front

What is the slope of a vertical line?

Back

Undefined

Front

What is the slope of a horizontal line?

Back

0

Front

Find the slope of the line that passes through the points (1, 1) and (3, 5).

Back

2

Front

If the slope of a line is 3, what does this mean in terms of rise over run?

Back

For every 3 units the line rises, it runs 1 unit to the right.

Front

Find the slope of the line that passes through the points (0, 0) and (5, 10).

Back

2

Front

What is the slope of the line that passes through the points (7, 2) and (7, 5)?

Back

Undefined (vertical line).