Unit 3 Pretest Review

Q1. The function f(x) is graphed below. What is true about the graph on the interval from d to e?

• It is positive and increasing

• It is positive and decreasing

• It is negative and increasing

• It is negative and decreasing

Q2. Graphed below is the function g(x). Which statement correctly represents the x-intercept in function notation?

• g(0) = 5

• g(5) = 0

• g(0) = 0

• g(7) = 5

What is the domain of the function?

What is the domain of the graph?

• -3 ≤ x ≤ 3
• 3 ≤ x ≤ -3
• -2 ≤ x ≤ 10
• -3 ≤ x ≤ 10

What is the range of the graph?

• -2 < y < 10
• -3 < x < 3
• -2 ≤ y ≤ 10
• -3≤ x ≤ 3

Evaluate the function when x = 6 

• f(6) = -5
• f(6) = 4
• f(6) = 2
• f(6) = 7

What is the RANGE of the function?

• (-∞, +∞)
• (-∞, 4]
• (-∞, 4)
• [0, 4]

What is the DOMAIN of the function?

• (-∞, +∞)
• (-∞, 4]
• (-∞, 4)
• [0, 4]

The following function represents the prices you must pay a handyman to work at your house according to the number of hours he works.

Find how much it will cost to have the handyman work for 2 hours.

• $40

• $75

• $45

• $65

Here are graphs that represent two function, function f and g.

Which value is greater, f(6) or g(6)?