Read and analyze each item carefully. Choose the letter of your answer. Show your
complete solution if necessary.
1. What is the value of the expression 2x + y – 6 when x = -2 and y = 3?
a. 7 b. 1 c. – 2 d. – 7
2. Of the following, which is a numerical expression?
a. 2x + 4 b. 3 – 6 + y c. 2ab d. 2(9 – 14)
3. Evaluate 3(a + 2b), if a = 5 and b = -5
a. -15 b. 15 c. 25 d. 45
4. What is the value of x if 2x – 3 is equal to 5?
a. – 4 b. – 1 c. 1 d. 4
5. If x = 1 and y = - 1, what is the value of the expression 3x2 – 3y2?
a. 0 b. 6 c. 8 d. 12