G6 Coordinate Geometry Formulas

Which of the following is the correct midpoint formula given two endpoints (x₁, y₁) and (x₂, y₂)?

Mark the midpoint on the graph.

Find the midpoint between the two points: (-1,1) and (5,-5)

• (3,-3)
• (2,-2)
• (4,-4)
• (4,5)

What is the midpoint between (8, -3) and (2, 5)

• (5, 1)
• (10, 2)
• (-5, -1)
• (3, 4)

For each key word, determine which formula you would have to use.

Groups:

(a) Slope

,

(b) Distance

,

(c) Midpoint

• perpendicular

• congruent

• parallel

• center

• length

• bisector

Segment AB has endpoints at A(2,1) and B(5,5).

The slope is ​ ​ (a)   , the distance is ​ (b)   , and the midpoint is ​ ​ (c)   .

What expression gives us the distance between A(3, 1) and B(-2, -1)?

Which expression represents the slope between (-5, 8) and (1, 16)?

What is the distance between the two points? Round to the nearest tenth.

• 6.3
• 7.2

• 8.5

• 16.1

What is the slope between the two points?