Midpoint Calculation Introduction SACHS
(1,0)
(3,4)
The midpoint can be seen atthe point (2, 2).......It can also be calculated fromthe coordinates of A & B.
The find the 'middle', we can
average the x values and
average the y values.
Remember, the order is
always (x, y)
(1,0)
(x,y)
(3,4)
(x,y)
x = 
y =
So midpoint = (2,2) 
1 + 3
0 + 4
Average y
Average x
2
2
=
=
2
4
4
2
= 2
= 2
1. Calculate the midpoint of:  (2, 7) & (4, 3)
Average y =
Average x =
So, without diagrams........
2 +
7 +
2
2
=
=
2
(x, y)
2
=
=
2. Calculate the midpoint of:  (3, 2) & (9, 6)
Average y =
Average x =
So, without diagrams........
3 +
2 +
2
2
=
=
(x, y)
2
2
=
=
3. Calculate the midpoint of:  (-1, -2) & (3, 6)
Average y =
Average x =
So, without diagrams........
-1 +
-2 +
2
2
=
=
(x, y)
2
2
=
=
4. Calculate the midpoint of:  (1, -2) & (-3, 8)
Average y =
Average x =
So, without diagrams........
1 +
-2 +
2
2
=
=
(x, y)
2
2
=
=
5. Calculate the midpoint of:  (2, -1) & (7, -5)
Average y =
Average x =
So, without diagrams........
2 +
-1 +
2
2
=
=
(x, y)
2
2
=
=
Students who took this test also took :

Created with That Quiz — the site for test creation and grading in math and other subjects.