Keystone 2022 Released items

For a local race, the prize for first place is $250 plus an additional $5 for every person who registers for the race. The equation shown below represents the prize (y), in dollars, for first place based on the number of people (x) who register for the race. y = 5x + 250 Which statement about the prize for first place is true?

• The prize for first place will always be a multiple of 50.

• The prize for first place will be $325 if 75 people register for the race.

• The prize for first place when there are 50 people registered for the race is twice as much as when there are 25 people registered.

• The prize for first place when there are 100 people registered for the race is twice as much as when there are 25 people registered.

The equation 3x + y = 8 describes a function of x. Which graph represents the function?

• Graph A

• Graph B

• Graph C

• Graph D

What is the correct equation calculated using the ordered pairs (2, -2) and (-4, 0)?

• y = -1/2x + 1
• y = 3/5x + 2/3

• y = -1/3x - 4/3

• y = 4x - 5

What is the correct slope-intercept form used in the example?

• y = 2

What is the slope and y-intercept used to determine the correct answer?

• m = 2/3

  y-intercept: (3,0)

• m = -1/2

  y-intercept: (0,4.5)

• m = -2/3

  y-intercept: (0,3)

• m = 1/2

  y-intercept: (0,3)

• 3

• 6

• 7

• 22

Which equation represents the line of best fit for the data provided?

• y = -0.5x + 15

• y = 1.5x + 25

• y = -1.5x + 50

• y = 2x + 10

Write the letter of the correct answer.

Dion has two bunches of similar bananas. One bunch has 8 bananas, and the other bunch has 9 bananas. The list below shows the weight, in grams, of each of the bananas in the bunch of 8: 138, 118, 121, 164, 140, 115, 129, 123. Which measurement is most likely closest to the total weight of the bunch of 9 bananas?

• 932 grams

• 1,048 grams

• 1,179 grams

• 1,368 grams

What is the median number of days that the 9 classmates exercised last week?

• 2

• 3

• 4

• 5