Function Operations

Free to teach as-is — the teacher guide, student handout, and slides are included.

Free — we'll email you an access link. Google Docs format.

Objective

I can perform operations with functions in mathematical and real-world contexts.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

6 questions

1

If f(x) = x + 1 and g(x) = 3x, what is f(x) + g(x)?

2

Let's say the cost of materials for a project is represented by the function m(x) = 2x and the labor cost is represented by l(x) = x + 5, where x is the number of items produced. Write a new function that represents the total cost, which is the sum of the material cost and labor cost.

Part 3 of 3

Exit ticket

Quick comprehension check

If f(x) = 3x + 2 and g(x) = x² - 1, what is f(x) + g(x)? If f(x) = 5x and g(x) = x + 7, what is f(x) * g(x)? If f(x) = x² + 4x and g(x) = x, what is f(x) / g(x)?

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

  • Slides

    Ready to present

We'll ask for your email to send your access link — nothing else.

Teaching a group at a different level?

Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.

Adapt This Lesson