HSC Together Year 11 Maths Extension: Introduction to Graphing Relationships

#### Maths Extension

• Further Work with Functions
• Polynomials
• Inverse Trigonometric Functions
• Further Trigonometric Identities
• Rates of Change
• Working with Combinatorics
• Back to other subjects
Back to other subjects

# Introduction to Graphing Relationships

When it comes to graphing complex functions, there’s a lot of techniques that can be applied to sketching the graph quickly. This post will act as a quick reminder of what functions are and preliminary graphing techniques. This is part of the Prelim Maths Extension 1 Syllabus from the topic Functions: Further, Work with Functions.

### What is a function and how do we determine if a graph is a function?

We use the vertical line test: if every x value has only 1 unique y value it is a function.

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