Quiz for:
Precalculus Fundamentals - Functions

Question 1

What does it mean for a function to be 'one-to-one'?

Question 2

Identify if this sequence is a function: Inputs: -2, 3, 5, -2 | Outputs: 5, 7, 9, 6

Question 3

Why does the presence of '±' in an equation suggest it is not a function?

Question 4

Which notation represents the output value of a function?

Question 5

In the equation `-7x + 5 = y`, what does this indicate about the function?

Question 6

If given the notation `Y = f(X)`, what does `f(X)` signify?

Question 7

Which of these equations represents a function?

Question 8

What is the domain of a function?

Question 9

Determine if the relation is a function: Input: -2, -1, 0, 1 | Output: 16, 4, 3, 4

Question 10

In the equation `3y^2 = 2x^2 + 1`, why can't we affirm this is a function if solved for y?

Question 11

What does it mean when an equation is solved for Y?

Question 12

What is the primary precondition for a relation to be considered a function?

Question 13

In terms of functions, what does it mean to isolate Y?

Question 14

What does the term 'range' refer to in the context of functions?

Question 15

In a practical example where job hours determine pay, why is this considered a function?