You want to be finding out what two factors (where one of them is a perfect square) has the produce of 63. It seems like 9 x 7 (9 is the perfect square) works.

The square root of 9 is 3 so we can just have

(which just means 3 times the square root of 7).
So F(6) means 6 on the x axis then look to see where the graph is on the Y axis,
in this case on x 6 y=4
Since one nickel equals 5 cents, you'd multiply 10 nickels by 5 cents apiece and yield 50 cents to spend.
Answer:
f(x)= (x^2 - 63) + 76
Step-by-step explanation: