Algebra 1 CT STAAR Review #2

What is the rate of change of y with respect to x for this function? The table represents some points on the graph of a linear function.

What is the rate of change of y with respect to x for this line?

Which system of equations represents lines f and g?

• y = 1.75x + 3.5;

  y = -4x - 8

• y = 1.75x + 3.5;

  y = -4x - 2

• y = 3.5x + 1.75;

  y = -4x - 8

• y = 3.5x + 1.75;

  y = -4x - 2

There are 9 books stacked on a shelf. The thickness of each book is either 1 inch or 2 inches. The height of the stack of 9 books is 14 inches. Which system of equations can be used to determine x, the number of 1-inch-thick books in the stack, and y, the number of 2-inch-thick books?

• x + y = 14;

  2x + y = 9

• x + y = 14;

  x + 2y = 9

• x + y = 9;

  x + 2y = 14

• x + y = 9;

  2x + y = 14

Printer ink costs $18.99 per cartridge. The company that sells the ink cartridges charges a flat rate shipping fee of $7.95, no matter the number of cartridges purchased in a single order. What linear function models the total cost, t, for a single order of c cartridges?

• c = 26.94t

• c = 18.99t + 7.95

• t = 26.94c

• t = 18.99c + 7.95

Which equation is best represented by the graph?

Which function represents f based on the table of points?

• f(x) = 26(x - 2)

• f(x) = -26(2x - 1)

• f(x) = 13(x - 2)

• f(x) = -2(26x - 1)

Which inequality best describes the domain of the part shown?

• Domain: -4 < x < 5

• Domain: -7 < x < 6

• Domain: -4 ≤ x ≤ 5

• Domain: -7 ≤ x ≤ 6

Which set of ordered pairs represents y as a function of x?

• {(-9, 2), (0, 6), (1, -2), (-3, 6)}

• {(-1, 0), (4, 3), (-7, -3), (-1, -8)}

• {(3, 2), (-4, -2), (3, 1), (-4, 1)}

• {(5, 4), (2, 3), (1, 1), (2, 4)}

What is the range of the function graphed on the grid?

• A. { x | x = -2, 2, 4 }

• B. { y | -3 ≤ y ≤ 4 }

• C. { x | -2 ≤ x ≤ 4 }

• D. { y | y = -3, 0, 4 }