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Exponential functions that pass there a point

User William Ranvaud
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1 Answer

18 votes
18 votes

f(x) means y

for function f y is proportional to x

so for the first one

f(x) = 4x^5

the point (2,80)

f(2) = 4(2)^5

f(2) = 4*32

f(2) = 128

The answer is not the first one

the second

f(x) = 5x^4

f(2) = 5(2)^4

f(2) = 5(16)

f(2) = 80

so the second function is the answer

User Claris
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2.8k points