Evaluating Algebraic Expressions and Equivalent Expressions

b² + 4
when b = 3

• 10

• 12

• 13

• 11

Evaluate when a = 15:
2(a - 5) + 2

• 22

• 27

• 14

• 7

6a - 3d
when a = 1, d = 2

• 3

• 12

• 1

• 0

Evaluate when x = 8:
2x + x - 10

• 34

• 22

• 14

• 24

Evaluate the expression when x = 8:  
7(6 + 3 − x)

• 72

• 56

• 21

• 7

a² - b²
Evaluate if a=4 and b =2

• 4

• 20

• -4

• 12

Evaluate 4y  if       y = 3

• 7

• 12

Evaluate m² if      m = 5

• 10

• 25

Evaluate 2r + 1      if   r = 3

• 6

• 5

• 7

• 8

A letter that represents a number is called a _____.

• variable

• coefficient

• constant

• term