Evaluating Algebraic Expressions Examples Page 2

Find the values of the expression for x = -2, -1, 0, 1, 2

This question is asking us to evaluate the expression for five different values. It may be easiest to do this in chart form.

X	3x2 + 1	Simplified
-2	3(-2)2 + 1	3(-2)2 + 1 3(4) + 1 12 + 1 13
-1	3(-1)2 + 1	3(-1)2 + 1 3(1) + 1 3 + 1 4
	3(0)2 + 1	3(0)2 + 1 3(0) + 1 0 + 1 1
1	3(1)2 + 1	3(1)2 + 1 3(1) + 1 3 + 1 4
2	3(2)2 + 1	3(2)2 +1 3(4) +1 12 + 1 13

The answers can be expressed as ordered pairs, with the x value first and the answer second. Here are the answers in this form:

(-2, 13), (-1, 4), (0, 1), (1, 4), and (2, 13)