Episode 6 — Inverse Graphs

Graph of Functions Question 1

Learners will be able to:

• Identify a function using the vertical line test. • Apply the vertical line test to determine if a graph represents a function. • Explain why a vertical line should only pass through a graph once for it to represent a function. • Determine which of three given graphs are functions based on the vertical line test. • Justify that a graph is not a function when a vertical line intersects it more than once.