Midpoint and Simplifying Expressions

The video tutorial covers the midpoint formula, demonstrating how to calculate the midpoint of a line segment using given coordinates. It includes examples of finding midpoints and determining the other endpoint of a line segment when one endpoint and the midpoint are known. The tutorial emphasizes understanding the formula and applying it to solve problems.

What is the formula for finding the midpoint between two points?

• X1 - X2, Y1 - Y2

• (X1 + X2) / 2, (Y1 + Y2) / 2

• X1 + X2, Y1 + Y2

• (X1 - X2) / 2, (Y1 - Y2) / 2

What is the first step in using the midpoint formula?

• Draw a graph

• Calculate the distance

• Find the slope

• Label the points

If X1 is -7 and X2 is 7, what is the X-coordinate of the midpoint?

• 7

• 0

• 14

• -7

What is the Y-coordinate of the midpoint if Y1 is -4 and Y2 is 7?

• 0

• 1.5

• 5.5

• 3

What is the result of simplifying the expression (-7 + 7) / 2?

• 14

• -7

• 7

• 0

What is the result of simplifying the expression (-4 + 7) / 2?

• 2.5

• 2

• 3

• 1.5

How do you determine the x-coordinate of a point from a graph?

• Count the units up or down from the origin

• Divide the x and y values

• Count the units left or right from the origin

• Multiply the x and y values

If a point is at (4, 0), what is the y-coordinate?

• 4

• 0

• -4

• 1

What is the midpoint of the points (4, 0) and (-3, 5)?

• (0.5, 2.5)

• (1, 5)

• (1, 2.5)

• (0.5, 5)

What is the x-coordinate of the midpoint if X1 is 4 and X2 is -3?

• 0.5

• 1

• 0.25

• 1.5