Evaluating Algebraic Expressions

Evaluate 2x + 5(y - 1) when x = 8 and y = 5

• 20

• 31

• 36

• -4

Evaluate:
x - y - x² + (y² + x)
when x = -3 and y = -2

• -9

• 9

• -3

• -13

Evaluate the expression when a = -15:

|a - 5| + 2

• 22

• 27

• -18

• 7

Evaluate the expression when p = 9 and q = 2:

|10p - 7q|

• 31

• 76

• -76

• 152

The equation for the table below is y=2x+5, fill in the missing values.

c

d

e

f

3

0

-1

4

9

7

Find the value of the expression.

• -12

• 12

• 14

• -14

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

​ (a)  

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

Which of the following expressions contains a variable?

• 7+3

• 144÷12

• 7 + 15n

• 6(5)

Simplify:
17m - 4 - 15m + 8

• 2m + 4

• 2m + (-12)

• 2m + 12

• 2m + (-4)