Applying coordinates to different geometrical scenarios

What's the midpoint of the the line-segment starting at (2,4) and ending at (2, 8)

• (-2,-6)
• (2, 12)
• (4, 12)
• (2, 6)

A midpoint of a segment is a point that divides the segment into two __________________________ segments.

• Equidistant

• Congruent

• Regular

• Equilateral

Find the midpoint: $(9,1),(8,-4)$  

•  $\left(\frac{9}{2},\frac{5}{2}\right)$  

•  $\left(\frac{5}{2},\frac{9}{2}\right)$  

•  $\left(\frac{17}{2},-\frac{3}{2}\right)$  

•  $\left(-\frac{5}{2},\frac{17}{2}\right)$  

Find the coordinates of the midpoint E(4, 11) and F(−11, −5)

• (2, 9.5)

• (−3.5, 3)

• (−5, 11)

• (5.5, 0)

What point is halfway between (3, -1) and (8, -6)?
(Lisa Simpson Notes)

• (11, -7)
• (-5.5, -3.5)
• (5.5, -3.5)
• (2, -2)

SOLVE: (3,7) (7,9)

FORMULA: (Y2-Y1) / (X2-X1)

• 2/4

• 1/2

• 2/1

• 8

Find the other endpoint of a line segment with one endpoint $\left(1,-6\right)$ and midpoint  $\left(-5,-5\right)$ .

•  $\left(-16,-16\right)$  

•  $\left(-10,18\right)$  

•  $\left(18,16\right)$  

•  $\left(5,22\right)$  

•  $\left(-11,-4\right)$  

How do you feel about the midpoint formula

• It's easy!

• As long as you give me the formula I'm good!

• Okay.. I just need more practice

• The what???

• Is that a new type of ice cream?

Find the midpoint:

• A

• B

• C

• D

Find the other end point of the line segment with the given end point (-2,-6) and midpoint (-1,9).

• (-4,4)

• (-0.5,-7.5)

• (0,24)

• (-3,4)