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Vocabulary
Evaluating Function Rules
100
What is the definition of domain?
A set of input values (all values of x).
100
Evaluate f(2) if f(x)=-3x
f(2) = -6
200
What is the definition of range?
The set of output values (all values of y).
200
Evaluate f(7) if f(x)= -(4x+2)
f(7) = -30
300
What is the definition of a function?
A relationship between input and output values. Each input has exactly one output value.
300

Evaluate f(-6) if f(x)=x2 - 9

f(-6) = 27

400

What is the definition of an independent variable?

A variable whose values affect the values of another variable (dependent variable). It is usually found on the x-axis of a graph.

400

Evaluate f(4) if f(x)=25 - 4x

f(4) = 9

500
What is the test to tell if a graph is a function?
Vertical Line Test
500

Evaluate f(-2) if f(x)=3x2+15

f(-2) = 27