1.5: Evaluating Algebraic Expressions

1.5: Evaluating Algebraic Expressions

Lesson EQ: How can you use integer and algebraic properties to evaluate algebraic expressions?

Multiple Choice

12 ÷ a + 8
when a = 4

• 1
• 11
• 12
• 2

Multiple Choice

Evaluate when x = 20

 $\frac{x}{4}+11$  

• 16

• 34

• 14

• 27

Multiple Choice

Evaluate the expression when x = 3. 
2x² - 5

• 31
• 12
• 7
• 13

Multiple Choice

2x + 3 + x²; for x = 4

• 17
• 27
• 19
• 25

Multiple Choice

Evaluate when a = 15:
2(a - 5) + 2

• 22
• 27
• 14
• 7

Multiple Choice

Evaluate when y = 4 and z = 2

8y + 12 - 2z

• 40

• 20

• 84

• 34

Multiple Choice

Evaluate 3x - 7 if x = 12

• 36

• 29

• 28

• 13

Multiple Choice

Evaluate when x = 2 and y = 5:
2 + (12 - 5x) ⋅ 2y

• 22
• 40
• 142
• -86

Multiple Choice

Evaluate when x = 8 and z = 2

3(2x + z)

• 12

• 30

• 54

• 60

Multiple Choice

Evaluate when x = 8:

7(6 + 3 − x)

• 72

• 56

• 21

• 7

Multiple Choice

5m + 9n if m = -7 and n = 4

• 71

• 1

• -1

• -71

Multiple Choice

Evaluate 3b + 4c if b = 9 and c = 3

• 27

• 12

• 15

• 39

Multiple Choice

8y + 12 - 2z; for y = 4 and z = 2

• 40
• 20

Multiple Choice

Evaluate when a = 15:
2(a - 5) + 2

• 22
• 27
• 14
• 7

Multiple Choice

Evaluate if a = 2 and b = 8
6 + 7b - 3a

• -100
• 100
• -56
• 56

Multiple Choice

Evaluate when x = 8 and y = 5

2x + 5(y - 1)

• 20

• 31

• 36

• -4

Multiple Choice

Evaluate when a = 3, b = 4, and c = -6

bc + 5a

• 9

• 38

• -38

• -9

Multiple Choice

Evaluate when a = 2, b = 1, c = 9

6a + 2(c - b)

• 4

• -4

• 28

• 8

Multiple Choice

Evaluate when z = 18

16 - $\frac{2z}{3}-4$  

• 0

• 8

• none of those

• 4

Multiple Choice

Evaluate when x = 3  $\frac{7x-6}{3}$  + 4(8 + 2x) 

• 5

• 56

• none of those

• 61