If you add them all you get 50x12y13
Answer:
12x^2 + 8y -4
Step-by-step explanation:
(7x^2+3y-4) + (5x^2+5y)
= 12x^2 + 8y -4
Answer:
Because X (10) repeats
Step-by-step explanation:
A function has no repeated X but here in your x variable 10 is there twice so therefore it is NOT a function
You can use the pencil test also in a graph, align your pencil vertically and see if there are multiple points that have the same X and if there isn't any repeated its a function.