Algebra 1 Evaluate Algebraic Expressions

What are the variables in the following expression?

• 3, 4, 1 and 7

• z, x and y

• + and -

• 15

What is the constant in the algebraic expression?
 

• 3

• 2

• -2

• 7

How many terms are in the algebraic expression?

• 5

• 2

• 4

• 3

2x + 3 + x²; for x = 4

• 17

• 27

• 19

• 25

For a monthly family cookout, David buys 3 packages of hot dogs and 4 packages of hamburger patties. Hot dog packages each contain x hot dogs. Hamburger packages each contain y hamburger patties. Complete the expressions for the total number of hot dogs and hamburger patties David buys for 6 cookouts. 

6( ​ (a)   x + ​ (b)   y)

​ (c)   x + ​ (d)   y

• 3

• 4

• 18

• 24

• 7

Find the value of the expression.

• -12

• 12

• 14

• -14

For a monthly family cookout, David buys 3 packages of hot dogs and 4 packages of hamburger patties. Hot dog packages each contain x hot dogs. Hamburger packages each contain y hamburger patties. Complete the expressions for the total number of hot dogs and hamburger patties David buys for 6 cookouts. 6( ​ (a)   x + ​ (b)   y)

​ (c)   x + ​ (d)   y

• 3

• 4

• 18

• 24

• 7

Evaluate 3x + 8   if x = 2

• 13

• 14

• 15

• 16

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

• 34

• 22

• 14

• 24

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

• 31

• 12

• 7

• 13