Chapter 2.1 - Midpoint

Chapter 2.1 - Midpoint

Finding the Midpoint of a Line Segment

​Find the midpoint of the line segment with endpoints (4.2, -4) and (-2.8, 3).

Multiple Choice

​Find the midpoint of the line segment with endpoints (4.2, -4) and (-2.8, 3).

Identify (x₁, y₁) and (x₂, y₂).

• (-4, 4.2) and (3, -2.8)

  (x₁, y₁) and (x₂, y₂)

• (4.2, -4) and (-2.8, 3)

  (x₁, y₁) and (x₂, y₂)

• (4.2, -2.8) and (-4, 3)

  (x₁, y₁) and (x₂, y₂)

• (4.2, 3) and (-2.8, -4)

  (x₁, y₁) and (x₂, y₂)

Multiple Choice

​Find the midpoint of the line segment with endpoints (4.2, -4) and (-2.8, 3).

Using the midpoint formula,  $$M\ =\left(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\right)$$  , what should it look like when the points are plugged in?

• $$\left(\frac{4.2+\left(-2.8\right)}{2},\frac{-4+3}{2}\right)$$  

• $$\left(\frac{4.2+\left(-4\right)}{2},\frac{-2.8+3}{2}\right)$$  

• $$\left(\frac{-4+3}{2},\frac{4.2+\left(-2.8\right)}{2}\right)$$  

• $$\left(\frac{4.2+\left(3\right)}{2},\frac{-4+\left(-2.8\right)}{2}\right)$$  

​Note!

Multiple Choice

​Find the midpoint of the line segment with endpoints (4.2, -4) and (-2.8, 3).

What is the midpoint?

• (-0.7, 0.5)

• (0.7, 0.5)

• (-0.7 -0.5)

• (0.7, -0.5)