8.5I Multiple Representations

The sponsor of the math club is ordering jackets for the members of the club.

-There is a one time design fee of $32.

-Each jacket that is ordered costs $9.75.

Which equation can be used to find t, the total cost of ordering n jackets?

• t = 9.75n - 32

• t = 32n + 9.75

• t = 32n - 9.75

• t = 9.75n + 32

Which function is best represented by the graph?

• y = 4x - 2

• y = -4x + 2

Which function can be used to find the total cost of renting the cabin for d days?

• t = 75d + 125

• t = 125d + 75

• t = 150d + 275

• t = 75d + 200

Sophia purchased a new car. She made an $800 down payment and paid $355 each month until the car was paid off.

Which linear function represents the relationship between m, the monthly payments, and t, the total amount paid on the car?

• t = 355m - 800

• t = -355m + 800

• t = -355m - 800

• t = 355m + 800

The table shows the amount of money remaining in a bank account after a monthly service fee is withdrawn each month the account is open.

Which function shows the relationship between a, the amount of money remaining in the account and m, the number of months the account is open?

• a = 950 - 12m

• a = 950 + 12m

• a = 902 - 60m

• a = 902 + 60m

A line on a coordinate plane passes through the points (6,4) and (-1,2).

What linear equation best represents the line?

The graph shows the relationship between the total cost of shipping a package and the weight of the package.

Which function can be used to find y, the total cost of shipping the package and x, the weight of the package?

• y = 0.75x + 6

• y = 1.50x + 6

• y = -1.50x + 6

• y = -0.75x - 6

On a farm, a silo contains 7,000 pounds of wheat. The wheat is removed from the silo by the truckload to be sold to bread companies. Each truckload carries 50 pounds of wheat.

Which function can be used to find w, the amount of wheat remaining in the silo after t truckloads?

• w = 7,000t - 50

• w = 7,000 + 50t

• w = 7,000 - 50t

• w = 7,000t + 50

The table shows the weight of a newborn kitten and its age in weeks.

Which linear equation shows the relationship between the kitten's age, k, and its weight, w?

• w = 2.4k + 4

• w = 0.8k + 4

• w = 0.8k + 5.6

• w = 2.4k + 5.6

The graph shows the relationship between the amount of fuel remaining in a car's fuel tank and the number of miles the car has been driven.

Which function can be used to find y, the number of gallons of fuel remaining in the car's fuel tank after the car has been driven x miles?

• y = 0.5x + 15

• y = 0.25x - 15

• y = 15 - 0.5x

• y = 15x - 0.25