Question 1

Which of the following is the midpoint formula?

Accepted Answer

$(\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Answer

$(\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Answer

$(\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Answer

$(\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Question 2

Which of the following is the Pythagorean Theorem as listed on your Reference Sheet?

Accepted Answer

$(\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Answer

$(\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Answer

$(\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Answer

$(\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Question 3

Find the coordinates of the midpoint.

Accepted Answer

(-2,-1)

Answer

(-3,0)

Answer

(-2,0)

Answer

(-3,-1)

Question 4

Line segment AB has endpoints A(2,-3) and B(-4,6). What are the coordinates of point M, its midpoint?

Accepted Answer

(-1, 1.5)

Answer

(3, -4.5)

Answer

(2, 3)

Answer

(-3, 4.5)

Question 5

The midpoint of $\overline{AB}$ is point M(4, 2). If point A is at (6, -4), what are the coordinates of B? [HINT: use a sheet of graph paper!]

Accepted Answer

(2, 8)

Answer

(1, -3)

Answer

(8, -10)

Answer

(5, -1)

Question 6

What is the length of $\overline{AB}$ in simplest radical form if its endpoints are G(3,8) and H(6,-1)?

Accepted Answer

$(\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Answer

$(\frac{x_1 + x_2}{2},\frac{y_1 + y_2}{2})$

Answer

45

Answer

90

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