STAAR Algebra

A paper airplane was thrown from the top of a tall building. The height of the paper airplane above the ground can be found using the function y = −1.5x + 60, where x is the time in seconds the airplane has been in the air.

How many seconds did it take the paper airplane to reach the ground?

• 40 seconds

• 15 seconds

• 20 seconds

• 60 seconds

Which expression is equivalent to the expression above for all values of q where the expressions is defined?

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Tags

CCSS.HSA.APR.A.1

Which graph best represents a quadratic function that has only one zero?

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Tags

CCSS.HSF-IF.C.7A

What is the solution set for the inequality -4x + 10 ≥ 5x + 55?

• x ≥ 5

• x ≥ 45

• x ≤ -5

• x ≤ -45

Which expression is a factor of 21x² + 13x - 20?

• 3x - 4

• 7x - 5

• 7x + 4

• 3x + 5

What are the equation and slope of the line shown on the grid?

• y = 6; slope is -1/6

• x = 6; slope is zero

• y = 6; slope is 6

• x = 6; slope is undefined

Tags

CCSS.8.EE.B.5

What is the solution to the equation 34x + 95 = 3(14x + 9)?

• 8.5

• 10.75

• -13

• -15.25

The graphs of linear functions f and g are shown on the grid.

Which function is best represented by the graph of g?

• g(x) = f(x) - 4

• g(x) = ¹/₃ f(x)

• g(x) = f(x) - 2

• g(x) = 3f(x)

Which expression is equivalent to (h² + 9h - 1) (-4h + 3)?

• -4h³ - 33h² + 31h - 3

• 4h³ + 39h² - 23h - 3

• -4h³ - 39h² + 23h + 3

• 4h³ + 33h² - 31h + 3

Tags

CCSS.HSA.APR.A.1

There are 15 plates in a kitchen cabinet. The diameter of each plate is either 7 inches or 12 inches. The diameter of all 15 plates combined is 140 inches.

Which system of equations can be used to find the number of 7-inch plates, x, and the number of 12-inch plates, y, that are in the cabinet?

• x + y = 140

  12x + 7y = 15

• 7x + 12y = 140

  7x + 12y = 15

• x + y = 15

  7x + 12y = 140

• x + y = 15

  12x + 7y = 140

Tags

CCSS.8.EE.C.8C