Question

Which function grows at the fastest rate for increasing values of x?

g(x)=15x+6

f(x)=4⋅2^x

h(x)=9x^2+25


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Answer 1

f(x). Not that much working except realising that each time x increases the answer is 4.2 times bigger then the previous.

Answer 2

f(x)=4⋅2^2

Explanation:

It is b I took the test

look in the picture below