Mastering the Midpoint Formula in Geometry

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

• (X1 + X2) / 2, (Y1 + Y2) / 2

• (X1 - X2) / 2, (Y1 - Y2) / 2

• (X1 * X2) / 2, (Y1 * Y2) / 2

• (X1 / X2) / 2, (Y1 / Y2) / 2

Why does the midpoint formula look unusual with parentheses and a comma?

• It is used for calculating areas.

• It is an incorrect formula.

• It is a trick by mathematicians.

• It represents a coordinate point on a graph.

Given points A(8, 6) and B(-2, 12), what is the x-coordinate of the midpoint?

• 3

• 4

• 6

• 2

Given points A(8, 6) and B(-2, 12), what is the y-coordinate of the midpoint?

• 7

• 9

• 6

• 8

If one endpoint is B(12, 4) and the midpoint is M(6, Z), what is the x-coordinate of the other endpoint?

• 6

• 12

• 0

• 4

If one endpoint is B(12, 4) and the midpoint is M(6, Z), what is the y-coordinate of the other endpoint?

• 2

• -4

• 0

• 4

In the alternative method, what do you do to the x-coordinate of the endpoint to find the midpoint?

• Subtract the difference

• Add the difference

• Divide by 2

• Multiply by 2

In the alternative method, what do you do to the y-coordinate of the endpoint to find the midpoint?

• Divide by 2

• Multiply by 2

• Subtract the difference

• Add the difference

Given points R(4, 3) and S(-2, -10), what is the x-coordinate of the midpoint?

• 1

• 2

• 3

• 0

Given points R(4, 3) and S(-2, -10), what is the y-coordinate of the midpoint?

• -3.5

• -4

• -5

• -6