Question

question 7
which of the following is not a function?
a relation where x = 3 has two different y - values
a graph that passes the vertical line test
a line with the equation y = 2x - 1
a table where x - values are all different

Explanation:

A function is a relation where each input (x - value) has exactly one output (y - value). In the case of a relation where x = 3 has two different y - values, it violates the definition of a function. A graph that passes the vertical line test represents a function as any vertical line intersects the graph at most once. The equation y = 2x - 1 is a linear function. A table where x - values are all different implies that each x has a unique y - value, which is a function.

Answer:

A. A relation where x = 3 has two different y - values