Functions and Linear Equations Word Problems

55

525

10

580

• 55

• 525

• 10

• 580

Sam was drinking the slushy at what rate?

• 55 millimeters per second

• 525 millimeters per second

• 10 millimeters per second

• 1/10 millimeters per second

Ethan has a glass tank. First, he wants to put some marbles in it, all the same volume. Then, he wants to fill the tank with water until it's completely full.
This is the formula for the volume of water Ethan should use W(measured in liters) as a function of the number of marbles used n.
W(n) = 32 - 0.08n
The glass tank's volume is -

• 31.92 liters

• 32 liters

• 10 liters

• 55 liters

Which linear function has a greater value at x = 0 and which linear function increases faster?

• g(x) has a greater value at x = 0.
  h(x) increases faster.

• g(x) has a greater value at x = 0.
  g(x) increases faster.

• h(x) has a greater value at x = 0.
  h(x) increases faster.

• h(x) has a greater value at x = 0.
  g(x) increases faster.

Which studio charges more for each additional class?

• The 1st studio charges more for each additional class.

• The 2nd studio charges more for each additional class.

• Both studios charge the same amount for each additional class.

If Emily wants to take 14 classes each month, which studio is cheaper for her?

• At 14 classes, the 1st studio would be cheaper for her.

• At 14 classes, the 2nd studio would be cheaper for her.

• At 14 classes per month, both studios would cost the same.

How fast did the wrestler gain weight?

• 7.65 Kilograms per month

• 12.75 kilograms per month

• 0.2 kilograms per month

• 5.1 kilograms per month

Lee charges $3 for a basket and $2.50 for each pound of fruit picked at the orchard. Write an equation in y = mx + b form for the total cost of x pounds of fruit from the orchard.

• y = 3x + 2.5

• y = 2.50x + 3

• y = 2.50x 

• y = 3x + 2.50

You plan to go snowboarding. The resort charges $15 an hour in addition to $25 to rent a board. Write an equation that represents the cost to go snowboarding for the day.

• y=15x-25

• 15x+25y=100

• 25x+y=15

• y=15x+25

Is the graph linear, exponential or neither?

• Linear

• Exponential

• Neither