Answer:
Hello! A function is easily identified when an x value does not have more than 1 y value. a y value can have as many x values to infinity, but x can only have one y.
Example...
x y
3 5
4 5
1 2
the answer is the first one A
Ryan has 50 cookies if he wants to buys x amount of 16 cookies, how many cookies will he have c= cookies
X cannot be 6 or -2/5 because if they were the denominator would be zero