Finding Slope

Front

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

Back

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

Front

Find the slope of the line that passes through the points (10, -6) and (-5, 4).

Back

-2/3

Front

Find the slope of the line passing through the points (5, 15) and (6, 5).

Back

-10

Front

Find the slope of the line passing through the points (-8, -8) and (-1, -3).

Back

5/7

Front

Find the slope of the line that passes through the points (2, 4) and (6, 12).

Back

2

Front

What does it mean if the slope of a line is undefined?

Back

The line is vertical, meaning it goes straight up and down.

Front

What is the slope of a horizontal line?

Back

0, because there is no change in y as x changes.

Front

If a line has a positive slope, what does that indicate about the line's direction?

Back

The line rises from left to right.

Front

If a line has a negative slope, what does that indicate about the line's direction?

Back

The line falls from left to right.

Front

What is the slope of the line represented by the equation y = 3x + 2?

Back

3, which is the coefficient of x.