2022 Released Algebra 1 STAAR (Questions 28-36)

28. A university will spend at most $4,500 to buy monitors and keyboards

for a computer lab. Each monitor will cost $250, and each keyboard

will cost $50.

Which inequality represents all possible combinations of x, the number

of monitors, and y, the number of keyboards, the university can buy

for the computer lab?

• F. 250x + 50y < 4,500

• G. 250x + 50y ≤ 4,500

• H. 50x + 250y < 4,500

• I. 50x + 250y ≤ 4,500

29. A construction manager is monitoring the progress of the build of a

new house. The scatterplot and table show the number of months

since the start of the build and the percentage of the house still left to

build. A linear function can be used to model this relationship.

Which function best models the data?

• A. y = −13.5x + 97.8

• B. y = −13.5x + 7.3

• C. y = 97.8x − 13.5

• D. y = 7.3x − 97.8

30. Given f(x) = x² − 36, which statement is true?

• F. The only zero, 6, can be found when 0 = (x − 6)(x − 6).

• G. The only zero, 18, can be found when 0 = (x − 18)(x − 18).

• H. The zeros, −6 and 6, can be found when 0 = (x + 6)(x − 6).

• I. The zeros, −18 and 18, can be found when 0 = (x + 18)(x − 18).

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CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

31. A function is shown.

f(x) = 7 − 4x

What is the value of f(−5)?

• A. 27

• B. -13

• C. -15

• D. 140

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CCSS.HSF.IF.A.2

32. Which graph best represents y = −4(x + 3) − 2?

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33. Which expression is a factor of 10x² − 19x + 6?

• A. 10x − 3

• B. 10x − 1

• C. 5x − 3

• D. 5x − 2

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CCSS.HSA.APR.B.2

34. The table shows the linear relationship between the distance in feet

below sea level and the time in seconds traveled by a submarine.

What is the rate of change of the distance in feet below sea level with

respect to time that the submarine traveled?

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CCSS.HSF-LE.A.1B

35. Which equation best represents the line shown on the grid?

• A. y = 0

• B. y = -6

• C. x = 0

• D. x = -6

36. An insect population after x months can be modeled by the function

g(x) = 18(1.3)^x. Which statement is the best interpretation of one of

the values in this function?

• F. The insect population increased by 13 insects each month.

• G. The insect population decreased by 13 insects each month.

• H. The insect population increased at a rate of 30% each month.

• J. The insect population decreased at a rate of 30% each month.

Tags

CCSS.HSF.LE.B.5