I think they mean apples, coins or something along those lines.
Since a and c in this equation are perfect squares, you know that the value of the factored form is going to be the (sqrt of a*d added to the sqrt of 81)^2, making(d+9)^2
Answer:
I do not believe this is a function because the points on the graph are above each other on one line.
Step-by-step explanation:
Your answer would be A. 12