Praxis II Mathematics Content Knowledge Exam Prep - Question List

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6.

Given a triangle with a base of 42.20 ft and a height of 63.10 ft, find the area of the triangle.

  1. 105.30 ft2
  2. 634.3 ft2
  3. 1,000 ft2
  4. 1,331.41 ft2
7.

If y = 2x + 1, what is the arithmetic mean of 2x, 2x, y, and 3y, in terms of x?

  1. 2x
  2. 2x + 1
  3. 3 x + 1
  4. None of the above
8.

In theory, the weight of an observation is defined to be ______ to the variance (standard error squared) of the observation.

  1. Proportional
  2. Inversely proportional
  3. Equal
  4. None of the above.
9.

The table below gives the value of the linear function f for several values of x. What is the value of a + b?

x 2 3 4
f(x) a 8 b
 

  1. 6
  2. 10
  3. 12
  4. None of the above
10.

A point is reflected first over the line y = x, then over the x-axis, then over the y-axis. The resulting point has the coordinates (73, 14). The coordinates of the original point were which of the following?

  1. (-14, -73)
  2. (-73, 14)
  3. (73, -14)
  4. (73, 14)

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