Answer:
(a)
(b)
(c)
Step-by-step explanation:
(a)
Simply evaluate (a+h) in the function:
(b)
Evaluate (a) in the function:
Using the previous answers lets calculate f(a+h)-f(a)
(c) To find the rate of change of f(a+1) when a=7 we need to calculate its derivate at that point:
Answer:
21
Step-by-step explanation:
+ 11g - 4h
f = 3, g = 2 and h = 7.
Substitute the above values into the expression.
+ 11 × 2 - 4 × 7
Since there's no addition, subtraction or division signs between 11g and 4h, this basically shows that it is multiplied. Simplify further...
is 3×3×3 which equals to 27
11 × 2 equals to 22, and
-4 × 7 = -28
Put all these found values into an expression.
27 + 22 - 28
Use the B.O.D.M.A.S. rule. First we have to add then subtract.
(27 + 22) - 28
49 - 28 = 21