Determine the distance of two points on a number line

The video tutorial explains how to plot points on a line graph and determine the distance between them. It covers the basics of plotting points, understanding positive and negative directions, and introduces the concept of finding distances algebraically using absolute values. The tutorial provides an example to illustrate the calculation of distance between two points on a line graph.

What is the direction considered positive on a line graph?

• Downwards

• Upwards

• To the right

• To the left

How do you label two points on a line graph to find the distance between them?

• A and B

• P1 and P2

• X and Y

• X1 and X2

What is the algebraic method to find the distance between two points on a line graph?

• Add the two points

• Multiply the two points

• Subtract the two points and take the absolute value

• Divide the two points

Why is the absolute value used when calculating distance?

• To convert all values to negative

• To make calculations easier

• To find the midpoint

• To ensure the distance is always positive

In the example given, what is the distance between the points X2 = 4 and X1 = -2?

• 8

• 2

• 4

• 6