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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Real Numbers and Their Properties
Algebraic Expressions

Warm-Ups



1

The expression 2x + 3y is referred to as a sum.
A)TRUE
B)FALSE
2

The expression 5(y - 9) is a difference.
A)TRUE
B)FALSE
3

The expression 2(x + 3y) is a product.
A)TRUE
B)FALSE
4

The expression x/2 + y/3 is a quotient.
A)TRUE
B)FALSE
5

The expression (a + b)(a - b) is a product of a sum and a difference.
A)TRUE
B)FALSE
6

If x is -2, then the value of 2x + 4 is 8.
A)TRUE
B)FALSE
7

If a = -3, then a3 - 5 = 22.
A)TRUE
B)FALSE
8

The number 5 is a solution to the equation 2x - 3 = 13.
A)TRUE
B)FALSE
9

The product of x + 3 and 5 is (x + 3)5.
A)TRUE
B)FALSE
10

The expression 2(x + 7) should be read as “the sum of 2 times x plus 7.”
A)TRUE
B)FALSE








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