PreCal Unit 2 Review

Is the following graph a function or not?

• not a function

• function

What is the range?

• {1,2,2,5}

• {0,1,2,4}

• {1,2,5}

• {5,2,1}

What is f(1)?

• 1
• 5
• 0
• 4

Evaluate f(-5) if f(x) = -2x - 12

• -22
• -2
• -19
• -5

What is the Domain of this linear function?

• -6 ≤ x ≤ 6
• 0 ≤ x ≤ 7
• 2 ≤ x ≤ 7
• No Solution

Suppose f(x) = x² - 8. Evaluate f(2) - f(3).

• -7

• 5

• -1

• -5

_{Identify the zeros from the graph given.}

• x = -1

• x = 1

• x = 0

• x = 0.5

Give the y-interecept
5x + y = 5

• (1,0)
• (0,5)
• (5,0)
• (0,1)

Give the x-intercept
3x + 8y = 24

• (8, 0)
• (0, 8)
• (3, 0)
• (0, 3)