Algebra Test Functions and Graphs

Question 1

Which of the following relations is a function?

Accepted Answer

{(1,2),(2,3),(3,4)}

Answer

{(1,2),(1,3),(2,4)}

Answer

{(2,1),(2,3),(2,5)}

Answer

{(0,0),(1,1),(1,-1)}

Question 2

What is the domain of f(x) = √(x - 3)?

Accepted Answer

x ≥ 3

Answer

x ≥ 0

Answer

x > 3

Answer

All real numbers

Question 3

If f(x) = 3x - 2, what is f(4)?

Accepted Answer

10

Answer

6

Answer

8

Answer

12

Question 4

The vertical line test determines whether a graph is:

Accepted Answer

A function

Answer

A linear equation

Answer

A polynomial

Answer

An inequality

Question 5

What is the range of f(x) = x² for all real x?

Accepted Answer

y ≥ 0

Answer

All real numbers

Answer

y > 0

Answer

y ≤ 0

Question 6

What notation means 'f composed with g'?

Accepted Answer

f ∘ g

Answer

f · g

Answer

f + g

Answer

f ÷ g