If f is a function such that the limit as x approaches a of the quotient of the quantity f of x minus f of a and the quantity x minus a equals 7, then which of the following statements must be true?

Answer 1

[f(x)-f(a)] /(x-a) = 7 as x-->a
is the definition of the derivative
f'(a) = 7

Answer 2

f'(a) = 7