Mid-Unit Quiz Form A

• f has a global minimum between x = -3 and x = 0.

• f has a global maximum between x = -3 and x = 0.

• f has a global minimum between x = 0 and x = 2.

• f has a global maximum between x = 0 and x = 2.

The table gives the velocity of a skydiver t seconds into a free fall. Find the average rate of change of velocity on the interval [10, 20].

• 1.6 ft/sec

• 16 ft/sec

• 150 ft/sec

• 152 ft/sec

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

The function y = h(x) is shown at right. On what interval(s) is the function increasing?

• (-∞, -1], [3, ∞)

• (-∞, 4), (-6, ∞)

• (-∞, 4), (3, ∞)

• (-∞, -1], [-6, ∞)

State the interval(s) where the function is concave up.

• (-1, ∞)

• (1, ∞)

• (1, 6)

• [1, ∞)

The function y = h(x) is shown at right. At what value(s) of x does h(x) change from decreasing to increasing?

• x = -3

• x = -1

• x = 3

• x = 6

The function y = h(x) is shown at right. On what open interval(s) of x is the function h(x) decreasing at an increasing rate? HINT: Where is the function both decreasing and concave up?

• -∞ < x < -1

• -1 < x < 1

• 1 < x < 3

• 3 < x < ∞

Find the point of inflection for the graph of y = f(x) using one of the three estimation methods. HINT: Find the Midpoint (halfway point) between the two extrema.

• (0.5, -1.5)

• (1, 0)

• (0.75, -1.25)

• (0.625, -1)

The table gives characteristics of the rates of change of the function g on different intervals. Which of the following is true about g on the interval 2 < x < 3?

• g is decreasing and the graph of g is concave up.

• g is decreasing and the graph of g is concave down.

• g is increasing and the graph of g is concave down.

• g is increasing and the graph of g is concave up.

Tags

CCSS.HSF.IF.B.4