2019 Release STAAR

What is the slope of the graph of y = 12x – 19?

• –19

• 12

A golfer hit a golf ball from a tee box that is 6 yards above the ground. The graph shows the height in yards of the golf ball above the ground as a quadratic function of x, the horizontal distance in yards of the golf ball from the tee box. What is the domain of the function for this situation?

• F 0 ≤ x ≤ 230

• G 6 ≤ y ≤ 36

• H 0 ≤ y ≤ 36

• J 6 ≤ x ≤ 230

Which value of x makes the equation 1.25(4x – 10) = 7.5 true?

• A 3.5

• B -1

• C -0.5

• D 4

Which function is equivalent to g(x) = x² + 15x - 54?

• F g(x) = (x + 9)(x - 6)

• G g(x) = (x + 18)(x - 3)

• H g(x) = (x - 9)(x + 6)

• J g(x) = (x - 18)(x + 3)

What is the rate of change of the average height in feet of the trees on the farm with respect to the number of years since the trees were planted?

• A 14 ft/yr

• B 3 ft/yr

• C 7 ft/yr

• D 10 ft/yr

What is the equation in slope-intercept form of the line that passes through the points (-4, 2) and (12, 6)?

• F y = 0.25x + 3

• G y = 0.25x - 4.5

• H y = 4x + 18

• J y = 4x - 42

Which graph best represents -5y = -6x + 15?

• A

• B

• C

• D

• F $20,780

• G $12,800

• H $28,800

• J $20,760

An exponential function is graphed on the grid. Which function is best represented by the graph?