Unit 5 Test Review: Context & Calc Practice

If point (M, –3) lies on the line whose equation is 5x + y = 12, then the value of M is

• 27

• 1.8

• –3

• 3

Tags

AI-A.REI.10

If point (6, B) lies on the line whose equation is 8x + y - 16 = 0, then the value of B is

• –32

• 32

• 1.25

• –2

Tags

AI-A.REI.10

If point (J, –2) lies on the line whose equation is 6 – y = 2x, then the value of J is

• 4

• 2

• –10

• 10

Tags

AI-A.REI.10

If point (4, W) lies on the line whose equation is x – 2y = 14 then the value of W is

• 22

• –5

• 5

• 7

Tags

AI-A.REI.10

The cost to rent out a room for a kid’s birthday party at Color Me Mine is modeled
by the function C(x) = 50x + 80, where x is the number of children attending the party.

Based on this model, which statement is true?

• It costs $0 to rent the room and $130 per child.

• It costs $50 to rent the room and $80 per child.

• It costs $80 to rent the room and $50 per child.

• It costs $50 for the first child and $80 for each additional child.

Tags

AI-F.LE.5

A construction worker has a set fee for materials, and charges by the hour, t, for
repairs. The total cost of his services can be modeled by c(t) = 145t + 90.

The value 90 best represents… 

• the cost per hour

• the number of hours

• the cost of materials for the repair

• the total cost

Tags

AI-F.LE.5

The cost of a gym membership is modeled by the function C(m) = 55m + 15, where m is
the number of months. 

Based on this model, which statement is true?

• It costs $0 to sign up for the gym, and the monthly membership fee is $70.

• It costs $55 to sign up for the gym, and the monthly membership fee is $15.

• It costs $55 to sign up for the gym, and there is no monthly membership fee.

• It costs $15 to sign up for the gym, and the monthly membership fee is $55.

Tags

AI-F.LE.5

A company that manufactures radios first pays a start-up cost, and then spends a
certain amount of money to manufacture each radio. 

If the cost of manufacturing r radios is given by the function c(r) = 5.25r + 125, then
the value 5.25 best represents…

• the start–up cost

• the profit earned from the sale of one radio

• the amount spent to manufacture each radio

• the average number of radios manufactured

Tags

AI-F.LE.5

If a function changes by equal differences over equal intervals, it is

• a negative function

• a nonlinear function

• a positive function

• a linear function

Tags

AI-F.LE.1