Question

The table shows values of n and f(n) for the equation f(n) =

n(n+3)
2.
f(n)
1
2
2
5
3
9
4
?
What is the value of f(n) when n =
= 42
A 12
B. 13
C. 14
D. 28
E

Answer 1

The value of f(n) when n = 42 is 945.

Step-by-step explanation:

The given table shows the values of n and f(n) for the equation f(n) = n(n+3)/2. To find the value of f(n) when n = 42, substitute the value of n into the equation and solve:

f(42) = 42(42+3)/2 = 42(45)/2 = 1890/2 = 945

So, the value of f(n) when n = 42 is 945.

Answer 2

I looked at the the picture and the answer is A. 12

I guess the 2 was supposed to be a question mark judging by the picture...