Model Linear Equations

The relationship between the cost of a large pizza and the number of toppings on the pizza is shown. Which equation represents the data in the table?

• C= 1.5t+7

• C= 2t+4.50

• C= 4.5t+7

• C= 7t+1.5

Look at the graph. Which equation can be used to represent the relationship between x and y for the points shown above?

• y=-1/3x+4

• y=-3x+4

• y=-1/2x+4

• y=-2x+4

A larger number is 4 more than 6 times a smaller number, x. Which equation represents this relationship?

• y=6+4x

• y=6x-4

• y=6x+4

• y=6(x+4)

A linear function is graphed on the coordinate grid. Which equation describes the graph?

• y=x+3

• y=x-2

• y=3x-3

• y=x-3

The Quick Car Repair Shop charges a $20 fee plus $45 an hour for labor. Any automobile parts needed are not included in this charge. What is the cost of the repair job, y, if Leon's car did not need any parts, but the repair took x hours?

• y=20+45x

• y=20x+25

• y=45(x+20)

• y=20(x+45)

Ms. Benton told her class she was creating a table of values using a rule. The table she gave them is shown. Which of the following is the rule Ms. Benton used to create the table?

• y=x-4

• y=2x-3

• y=3x-2

• y=4x-3

A line graph is shown on the grid. Which equation best represents the line graph?

• y=x-6

• y=0.5x+6

• y=2x+6

• y=x+5

Look at the table. Which equation represents the relationship shown in the table?

• y=1/2x+3

• y=x-7

• y=1/5x+9

• y=1/10x+11

A larger number is 8 more than 3 times a smaller number, x. Which equation represents this relationship?

• y=3+8x

• y=3x-8

• y=3(x+8)

• y=3x+8

A linear function is graphed on the coordinate grid. Which equation describes this graph?

• y=-3/2x+1

• y=3/2x-1

• y=-3/2x-1

• y=-2/3x-1