Unit 1 Test Review

Is the function linear or nonlinear?

• linear

• nonlinear

what kind of function is shown?

• quadratic

• exponential

• linear

• cubic

where is this graph increasing? Interval notation

• (-∾, 3)

• (-∾, +∾)

• none

• (-3, 3)

Determine whether the function is increasing, decreasing, or neither over the interval -3 ≤ x ≤ -2.

• increasing

• decreasing

• neither

Determine whether it is increasing, decreasing, or neither over the interval -2 ≤ x ≤ 2. 

• neither

• increasing

• decreasing

Mary's is collecting money for a local fundraiser. She has $600 and will collect $6 from every participant.

Which equation models Mary's money collected, where n represents each participant?

• a_n = 6a_n-1

• a_n = 6n + 600

• a_n = 600n + 6

• a_n = 6n + 0

The length of a rectangle is 4 inches less than twice its width. Which function represents the perimeter of the rectangle, p(w) based on the width, w.

what is the perimeter of the rectangle if the width is 56 inches?

• p(w) = 6w - 8

  p(56) = 328

• p(w) = w - 6

  p(56) = 50

• p(w) = 4w + 12

  p(56) = 236

• p(w) = 6w + 8

  p(56) = 344

The length of a rectangle is 2 inches less than double its width. Which function represents the perimeter of the rectangle, p(w) based on the width, w.

what is the perimeter of the rectangle if the width is 25 inches?

• p(w) = 3w - 2

  p(25) = 73

• p(w) = 8w - 4

  p(25) = 196

• p(w) = 4w + 8

  p(25) = 108

• p(w) = 8w + 0

  p(25) = 200

Bea drives for uber. Her pay is $50 plus $0.50 for every mile she drives. Which function represents Bea's paycheck, b(m), given m, in miles?

How much does she make if she drives 75 miles?

• b(m) = 50m + 0.50

  $85.00

• b(m) = 0.50m + 50

  $87.50

• b(m) = m + 50

  $125.00

• b(m) = 50.50 + m

  $125.50

Virginia own's a breakfast shop famous for its pancakes. She makes 72 pancakes and uses 2 cups of flour for each pancake. The cups of flour that she uses to make the pancakes is a function of the number of pancakes that she makes.

Select ALL statements that correctly describe the domain or range of this function.

• R: {y| 0 ≤ y ≤ 72}

• D: {x| x = 1,2,3, ...72}

• R: {y| y = 2,4,6, ...144}

• D: {x| 0 ≤ x ≤ 144}