Functions

What is a function? (Own understanding, maximum of 5 sentences)

A set of all possible input values

• Range

• Domain

• None

What is the formula for Linear Functions?

• f (x) = x^(2)

• f (x) = ax^(2) + bx + c

• f (x) = mx + b

• f (x) = a^(x)

When is a Relation not a Function?

• A relation is not a function if all input values correspond to exactly one output.

• A relation is not a function if it passes the vertical line test.

• A relation is not a function if there is only one input-output pair.

• A relation is not a function if at least one input corresponds to more than one output.

Which of the following is a linear function?

• f(x) = x^(2) + 3x + 2

• f(x) = 1/x

• f(x) = 3x + 5

• f(x)= sin(x)

A set of all output values

• Range

• Domain

• None

What type of function is f(x) = 3^(x)?

• Linear

• Quadratic

• Exponential

• Polynomial

A function can have multiple outputs for a single input.

• TRUE

• FALSE

The vertical line test can be used to determine if a relation is a function.

• TRUE

• FALSE

The function f(x)=e^(x) is defined for:

• All real numbers

• Only positive numbers

• Only negative numbers

• Non-integer values