One number was divided by 15, followed by this quotient being multiplied by 2. Next, the product was added to 9. The total sum was 7, so what was the first divisor?

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

differentiate (x^14(x^-2)^4with respect to the variable

the parentheses don't balance in your input.

differentiate 0 with respect to

the final answer is

0

hope this