EOC - REVISION 1

Which table shows y as a function of x?

• Table with x values -1, 1, 3, 1, 5 and corresponding y values 6, 10, 16, 22, 28

• Table with x values -1, 1, 3, 5, 5 and corresponding y values 6, 10, 16, 22, 28

• Table with x values -1, 1, 3, 5, 7 and corresponding y values 10, 10, 16, 22, 22

• Table with x values -1, -1, -1, -1, -1 and corresponding y values 6, 10, 16, 22, 28

A student solves the equation (10x - x = 2(3x + 1)). The table shows the student's work. Which equivalent equation could complete the table correctly?

• 3x = 2

• 7x = 6x

• 11x = 6x

• 15x = 2

Which value of x makes the equation (4(2x + 1.3) = -20.8) true?

• -3.25

• -1.95

• 1.95

• 3.25

A gardener records the height of a plant starting 2 years after being planted. The function f(x) = 2.5x + 10 represents the height of the plant, in centimeters, x years after being planted. The graph models the function. Based on the graph, what is the most reasonable domain for the function?

• x ≥ 8

• x ≥ 30

• 2 ≤ x ≤ 8

• 15 ≤ x ≤ 30

A knitter creates a price quote for a handmade blanket. Which is least likely to affect the value of the price quote?

• the color of the knitting needles

• the desired length of the blanket

• the estimated hours it will take

• the material of yarn chosen

The graph shows the height of a basketball, f(x), in feet, x seconds since the basketball was thrown, when 0 ≤ x ≤ 0.93. Which statement is true?

• The function is increasing when 0 < x < 0.4.

• The function is increasing when 0.4 < x < 0.93.

• The function is increasing when 6 < x < 14.

• The function is increasing for all real numbers.

The expression 30 + 7.59x represents the total amount, in dollars, a contractor spends at a store to purchase a power drill and x boxes of screws. What does 7.59 represent?

• The cost per box of screws

• The cost per power drill

• The number of boxes of screws the contractor purchases

• The number of power drills the contractor purchases

The graph shows the area remaining, y, in square feet, as a linear function of time, x, in minutes, for painting a wall. What is the rate of change of the area remaining with respect to the time?

• 180 square feet per minute

• 3 square feet per minute

• -3 square feet per minute

• 180 square feet per minute

When g ≥ 8, which statement is true? The expression 45 + 7.35(g – 8) represents the scenario where a cell phone company charges a flat rate for the first 8 gigabytes of data used. For any additional gigabytes of data used, the cell phone company charges an additional rate per gigabyte.

• The cell phone company charges $45 as the flat rate for the first 8 gigabytes and $7.35 for each additional gigabyte.

• The cell phone company charges $45 as the flat rate for the first 8 gigabytes and $8.00 for each additional gigabyte.

• The cell phone company charges $52.35 as the flat rate for the first 8 gigabytes and $7.35 for each additional gigabyte.

• The cell phone company charges $52.35 as the flat rate for the first 8 gigabytes and $8.00 for each additional gigabyte.

The equation C = 2πr represents the circumference, C, of a quarter with a radius of r centimeters. Which represents the equation when solved for r?

• r = 2π/C

• r = C/(2π)

• r = C + 2π

• r = C - 2π