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Maths question help

So despite me being able to complete this entire homework booklet, question 1 has stumped me and my friends. You can see my working so far on the question
(edited 7 months ago)
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Original post by thrivingfrog
So despite me being able to complete this entire homework booklet, question 1 has stumped me and my friends. You can see my working so far on the question


Have you evaluated the actual argument value in each case?

As youre only told one point on the function (it may/may not be *2.5), its not hard to guess.
Is it B? Because in B it says when x = 2, so 2x = 4, giving f(2x) = f(4), and we know that f(4) = 10 from the question.
(edited 7 months ago)

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