Review Quiz 2
Mr. T
This is a multiple choice quiz.

1	If the square root of x is greater than x, then x could be (1 point)
	2 1/2 0 4

2	If x(y+z)= w and x, y, z, and w are all integers, which of the following must be true? (1 point)
	xy + xz = w xy + z = w x(y + z) > 0 x, y, z and w are all positive

3	Which property is illustrated by the statement 4 • 1 = 4? (1 point)
	commutative property multiplicative inverse multiplicative identity additive identity

4	If a(b + c)=d and a, b, c and d are all integers, then which of the following MUST be true? (1 point)
	ab + c = d ab + ac = d a(b + c) > 0 ab < d

5	If a and b are both odd integers, which of the following MUST also be an odd integer? (1 point)
	a-b a*b a+b a/b

6	Which of the following are true for all real numbers x, y and z? I. x(y + z) = xy + xz II. x + y + z = z + y + x III. x - y - z = z - y - z (1 point)
	I, II and III II only I only I and II only

7	If the relationship shown is true, then t could be (1 point)
	Resource 1 4 1/4 0 -(1/4)

8	Which of the following systems is NOT commutative? (1 point)
	Subtraction of whole numbers Addition for integers Addition for whole numbers Multiplication of integers

9	Which of the following is a rational number? (1 point)
	square root of 2 pi square root of 64 none of the above

10	If x and y are both odd integers, which of the following MUST also be an odd integer? (1 point)
	x * y x - y x + y x / y

11	What is the identity element for addition? (1 point)
	-1 0 1 There is no identity element for addition.

12	The statement ( x + 5 )•( 7 + x ) = ( x + 5 )•( 7 )+( x + 5 )•( x ) is an example of which property? (1 point)
	associative property of addition commutative property of multiplication distributive property associative property of multiplication

13	If x³ < x² < x then the value of x could be (1 point)
	square root of 3 1 0 1/3

14	Which equation is an illustration of the additive identity property? (1 point)
	(x)•(1) = x (x)•(1/x) = 1 x + 0 = x x - x = 0