Answer:
Hi, there for the graph it will be not a function
For the equation it is also not a function
Step-by-step explanation:
For the graph use vertical line test to see if the x value are the same if they are that's means it is not a function.
The X value can't be the same and can't be used twice.
The reason why because given an equation, there should be only one corresponding y value for any x value.
