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f(x) = h(3x^2+1). Find fَ(1) if hَ(1) = 5 and hَ(4) = 2.
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They want we find f(1). So, we substitute x= 1 into f and calculate
f(1) = by the definition of f(x) = h(3*1^2 + 1) = h(4),
but h(4) is given : it is 2. So,
f(1) = h(4) = 2. ANSWER.
Solved, answered, explained and completed.
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The info " h(1) = 5 " is an excessive and unnecessary information: it is NOT USED in the solution.
It is included to the problem by its composer with a unique goal to confuse the reader.