Finding Midpoints and Endpoints in Geometry

This video tutorial introduces the midpoint formula, which is used to find the midpoint between two points or to find an endpoint when given a midpoint and one endpoint. The instructor provides a detailed explanation of the formula and demonstrates its application through three examples. The first two examples focus on calculating the midpoint, while the third example shows how to find an endpoint. The video concludes with a call to action for further learning and exploration of related topics.

What is the formula to find the x-coordinate of the midpoint?

• Multiply the x-coordinates and divide by 2

• Add the x-coordinates and divide by 2

• Subtract the x-coordinates and divide by 2

• Divide the x-coordinates and add 2

What is the formula to find the y-coordinate of the midpoint?

• Subtract the y-coordinates and divide by 2

• Add the y-coordinates and divide by 2

• Multiply the y-coordinates and divide by 2

• Divide the y-coordinates and add 2

Given points A(-8, -6) and B(-4, 10), what is the x-coordinate of the midpoint?

• -6

• -8

• -12

• -4

Given points A(-8, -6) and B(-4, 10), what is the y-coordinate of the midpoint?

• 6

• 8

• 2

• 4

Given points C(1, -3) and D(4, 2), what is the x-coordinate of the midpoint?

• 2

• 3

• 2.5

• 5

Given points C(1, -3) and D(4, 2), what is the y-coordinate of the midpoint?

• -0.5

• -1

• 1

• 0

If the midpoint is (2, 1) and one endpoint is (1, 4), what is the x-coordinate of the other endpoint?

• 3

• 2

• 1

• 4

If the midpoint is (2, 1) and one endpoint is (1, 4), what is the y-coordinate of the other endpoint?

• -2

• 4

• 0

• 2

What is the first step to isolate the variable when solving for an unknown endpoint?

• Multiply both sides by 2

• Add both sides by 2

• Subtract both sides by 2

• Divide both sides by 2

What should you do after isolating the variable to find the unknown endpoint?

• Add the known coordinate to both sides

• Subtract the known coordinate from both sides

• Divide the known coordinate by both sides

• Multiply the known coordinate by both sides