Slope from 2 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 it mean if the slope of a line is undefined?

Back

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

Front

What does a slope of 0 indicate about a line?

Back

The line is horizontal, meaning it goes straight left and right.

Front

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

Back

0

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 that 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 that 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 (3, 2) and (7, 6).

Back

1

Front

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

Back

1

Front

What is the slope of a line that is perpendicular to a line with a slope of 2?

Back

-1/2 (the negative reciprocal of 2).