Question

question
determine whether the following graph represents a function.
answer
function not a function

Explanation:

Use the vertical line test: a graph represents a function if any vertical line drawn intersects the graph at most once. For this graph, a vertical line (e.g., $x=3$) intersects the two lines, meaning one $x$-value maps to two $y$-values, violating function rules.

Answer:

Not a Function