2.1 Basics of Functions & Their Graphs Finals Review 2023

What is the domain of the graph?

• 1≤ x ≤ 4
• 1 < x < 4
• 1≤ y ≤ 4
• 1 < y < 4

What is the range of the graph?

• 1 ≤ x ≤ 5
• 1 < x < 5
• 1 ≤ y ≤ 5
• 1 < y < 5

Is this a function? Explain.

• Yes; it passes the horizontal line test.
• No; it is not a straight line.
• Yes; it passes the vertical line test.
• No; there is a line connecting the dots.

If h(a) = 3 - 2a

Find h(-3).

• 12
• -2
• -3
• 9

If f(x)=6x²-4,
what is f(0)?

• -4
• 4
• 0
• 2

What is x if
f(x) = -2?

• 4
• 0
• 3
• 8

What is f(1)?

• 1
• 5
• 0
• 4

What is the range of the function?

• (-∞, 3]
• (-∞, ∞)
• [3, ∞)
• (-6, 3]

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

• Function
• Not a Function