Finding Slope from Two Points and a Graph Review

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 points (12,-2) and (4,-6).

Back

1/2

Front

Find the slope of the points (-2,3) and (4,-5).

Back

-4/3

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

Find the slope of the points (-4,5) and (-4,2).

Back

undefined

Front

What is the slope of a horizontal line?

Back

0

Front

What is the slope of a vertical line?

Back

Undefined

Front

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

Back

The line rises from left to right.

Front

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

Back

The line falls from left to right.

Front

How do you determine the slope from a graph?

Back

Choose two points on the line, find their coordinates, and use the slope formula.