Algebra Unit 5 Qpc

The image shows the first three steps in a pattern. Select all expressions that relate the step number to the number of squares in that step.

Write this expression in standard form.

(2x + 5)(x - 3)

The table shows the length of rectangles with a perimeter of 40 ft. Which length will produce the largest area?

• 4 feet

• 10 feet

• 16 feet

• 20 feet

Choose the most appropriate domain for the revenue shown in the graph.

• between -2 and -1

• between 14 and 15

• between 2 and 3

• between 6 and 7

Which equation represents the function?

The cost of holding a children's birthday party at a rollerskating rink is a function of n, the number of people in the party. The cost function, C, can be represented with this set of rules.

How much does it cost to have a party with 15 people?

• $150

• $260

• $400

Function c is defined by the equation c(n) = 50 + 4n. It gives the monthly cost, in dollars, of visiting a gym as a function of the number of visits, n. Find the inverse function.

The cost of holding a children's birthday party at a rollerskating rink is a function of n, the number of people in the party. The cost function, C, can be represented with this set of rules.

How much does it cost to have a party with 12 people?

• $150

• $260

• $400

Proportional or not proportional?

• Proportional

• Not proportional