STUDENT
TEACHER

Function Operations Calculator

STUDENT
TEACHER

Function Operations Calculator

# Function Operations

CALCULATOR

## Function Operations Calculator

Functions:
Evaluate:

aka
We have some questions for you! Help us out through this
INTRO
A function operation is when we add, subtract, multiply, or divide functions.

If we imagine the first function as the detergent and the second function as the softener, evaluating a function operation is like doing laundry.

When we evaluate a function operation, we can plug the input into each function separately and then combine their outputs using the given operation ().

This is like applying detergent and softener separately on dirty clothes to get clean, soft clothes.

Alternatively, we can combine the two functions using the given operation (), and then plug the input into the combined function to determine the final output.

This is like using a pod that contains both detergent and softener to turn the dirty clothes into the clean, soft clothes.

Notice that both methods get us the same final results!

### What is a function?

Functions define the relationships between inputs and outputs.

For a review on how functions work and how to evaluate them, make sure to check out our

lesson!

Check out our
Calculator
or explore our
Lesson
and
Practice

KEY STEPS

## How to Evaluate Function Operations

When a is in the second set of parentheses:
Ex.

means plus

### Step 2. Plug in the functions.

Replace each function name with its function.

### (optional) Step 4. Plug in the input.

Plug in the input everywhere the variable shows up in the combined function.

### (optional) Step 5. Calculate the output.

Use order of operations (PEMDAS) to calculate the output.
LESSON
Evaluating Function Operations (Variable Input)
PRACTICE
Evaluating Function Operations (Variable Input)
LESSON
Evaluating Function Operations (Numerical Input)
PRACTICE
Evaluating Function Operations (Numerical Input)
CONCLUSION
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