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More Lessons for Algebra 1

Math Worksheets

Examples, solutions, videos, worksheets, games and activities to help Algebra 1 students learn how to distinguish between relations and functions.

**What is a function?**

Functions and their graphs

**Domain and range of a function**

Example:

Find the domain and the range.

1. Justin charges $10 per hour for mowing lawns.

2. Maria charges $25 per hour for tutoring math with, with a minimum charge of $15.

3. f(x) = 15x - 12.

4. f(x) = 2x^{2} + 5

5. f(x) = 1/x

6. What is the range of the function y = x^{2} - 5 when the domain is -2, -1, 0, 1, 2?
**Evaluate Functions**

Learn how do we evaluate functions for given input values

Example:

Evaluate the following function for the value x = 1/3.

f(x) = -4x^{2} - 7x + 9

**How to Determine if a Relations is a Functions?**

How to determine is a relation is a function and the concepts behind mapping a relation and the vertical line test.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

More Lessons for Algebra 1

Math Worksheets

Examples, solutions, videos, worksheets, games and activities to help Algebra 1 students learn how to distinguish between relations and functions.

Functions and their graphs

Example:

Find the domain and the range.

1. Justin charges $10 per hour for mowing lawns.

2. Maria charges $25 per hour for tutoring math with, with a minimum charge of $15.

3. f(x) = 15x - 12.

4. f(x) = 2x

5. f(x) = 1/x

6. What is the range of the function y = x

Learn how do we evaluate functions for given input values

Example:

Evaluate the following function for the value x = 1/3.

f(x) = -4x

How to determine is a relation is a function and the concepts behind mapping a relation and the vertical line test.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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