Review Functions

What is the domain of the function?

• D: {y | -3 < y ≤ 3}

• D: {y | -4 ≤ y ≤ 5}

• D:{x | -4 ≤ x ≤ 5}

• D: {x| -3 < x ≤ 3}

What is the domain of the graph?

• D:{y| y≥1 }

• D {x| x ≥ 1]

• D: { x| -7≤ x ≤ 10}

• D::{x| All real numbers}

What is the range of the graph?

• R: { y | y≥1 }

• R: {x| x≥1}

• R: {y| 1 ≤ y ≤ 10}

• R: {y| All real numbers}

What is the value of f(2)?

• -2

• 0

• 4

• (2,-2)

What is the value of f(-3)?

• 2

• -1

• -2

• 0

Evaluate f(-2) if f(x) = x²+ 3.

• -1
• 1
• 7
• -7

Determine whether the following sequence is arithmetic, geometric.

2, 8, 32,128...

• arithmetic

• geometric

Find the common ratio for the geometric sequence.

10, 20, 40, 80, ...

• 10

• 1/2

• 2

• 4

Write the recursive formula for 6, 17, 28, 39, 50....

• a_n=a_n-1+11
  a₁=6
• a_n=a_n-1-4
  a₁=6
• a_n=a_n-1+9
  a₁=6
• a_n=a_n-1+6
  a₁=6

Given the recursive formula, find the first four terms:

f(x) = f(x-1) + 5

f(1) = -16

• -16, -21, -26, -31

• 5, -11, -27, -43

• -16, -80, -500, -200

• -16, -11, -6, -1