Expressions Linear

Simplify by distributing:
3(-6x-3)

• 18x+9

• -18x-9

• 12x+6

• 18x-9

Factor:
12x + 9

• 3(4x + 3)

• x(12+9)

• 3(4x - 3)

• not factorable

Factor:  
4x + 30y

• 2(x + 15y)

• 4(x + 15y)

• 2(2x + 15y)

• can't be factored

Factor:  
2x + 18

• 2(x + 9)

• 2(x + 8)

• 2(2x + 9)

• cannot be factored

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

c

d

e

f

4

9

3

7

-1

0

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

A holiday meal costs $12.50 a person plus a delivery fee of $30.

• 30 + 12.5x 

• 12.5 + 30

• 12.5 + 30x

Write a linear expression for the perimeter of the triangle. Find the perimeter of the figure if x = 3.

• 6x − 8; The perimeter is 10 yd

• 10x − 6; The perimeter is 24 yd

• 16x − 8; The perimeter is 40 yd

• 14x − 8; The perimeter is 34 yd

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

Bob has $150 in his savings account and saves $40 per month.  Which equation represents the amount Bob has in his account after x months?

Mathematical Equivalence

ON