How to determine the slope of a line using slope triangle

The video tutorial explains how to determine the slope of a line by identifying two points on a graph. Initially, only one point is known, and the need for a second point is emphasized. The teacher guides students to find the second point at (5, 2) on the graph. Using these two points, the slope is calculated as the ratio of vertical change to horizontal change, resulting in a slope of 2/5.

Why is it important to have two points when determining the slope of a line?

• To compare the Y values only

• To compare the X values only

• To create a ratio or slope

• To find the midpoint of the line

What is the second point identified on the graph?

• (1, 1)

• (2, 5)

• (5, 2)

• (0, 0)

How do you determine the vertical change when calculating the slope?

• By measuring the horizontal distance

• By adding the X and Y coordinates

• By subtracting the Y coordinates

• By subtracting the X coordinates

What is the horizontal change between the two points (0, 0) and (5, 2)?

• 0

• 7

• 5

• 2

What is the slope of the line passing through the points (0, 0) and (5, 2)?

• 1/2

• 5/2

• 2/5

• 2