g(x)=kx3+3 For the function g defined above, k is a constant and g(-1)=5. What is the value of g(1) ?
Correct answer: C. 1
- A. -3
- B. -1
- C. 1
- D. 3
Explanation
First step is to find k 5=k(-13)+3 5 - 3 = - 1k - 2 =kOption A) Putting A) equal to the function -3 = k (13) + 3 k= -6 This is a Wrong option Option B) Putting B) equal to the function -1= k (13) + 3 K = - 4 This option is also wrong Option C) Putting C) equal to the function 1=k(13) + 3 k= - 2 Gives correct value for k, this is the answer. Option D) Putting D) equal to the function 3= k(13) + 3 k=0 So the correct answer is C.
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