Final answer:
To find f(a), substitute a for x in the given equation. To find f(a+h), substitute (a+h) for x in the equation. The difference quotient can be found by subtracting f(a) from f(a+h) and dividing it by h.
Step-by-step explanation:
To find f(a), substitute a for x in the given equation:
f(a) = 6 - 7a + 5a^2
To find f(a+h), substitute (a+h) for x in the equation:
f(a+h) = 6 - 7(a+h) + 5(a+h)^2
The difference quotient can be found by subtracting f(a) from f(a+h) and dividing it by h:
f(a+h) - f(a)/h = (6 - 7(a+h) + 5(a+h)^2 - (6 - 7a + 5a^2))/h
Simplify the equation if necessary.