Answer:
its y= - 1/4x + 1
hope this helps
Step-by-step explanation:
There’s an app that can solve this easily called photo math it’s what I used But x= 3
C (third graph, the parabola); To find if it is a function or not draw a vertical line on the graph. If the vertical line could never intercept the figure more than once anywhere on the graph then it is a function.