Question

Warm-Up
Recognizing a Function
Determine the graph that represents a function.

Answer 1

`1.\ x^2+y^2=5^2.\\2.\ y^2=9-x.\\3.\ y=2x-2.`

Answer 2

The 2nd one.

Explanation:

The 2nd one is a quadratic function as it is a parabola.