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Kisachek [45]
3 years ago
14

if you double the input of a function and it results in twice the output and if you triple the input and it result in three time

s the output what can be guessed about the function.
Mathematics
2 answers:
bearhunter [10]3 years ago
8 0

A function behaving as you state is a linear function, which means that the output varies directly with the input.

So, there exists some constant k \in \mathbb{R} such that your function is in the form

f(x) = kx

In fact, if you double the input, you have

f(2x) = k\cdot(2x) = 2\cdot (kx) = 2f(x)

And similarly

f(3x) = k\cdot(3x) = 3\cdot (kx) = 3f(x)

Note that this is a guess, it may happen that output doubles (triples) if you double (triple) the input, and still the function is not like y=kx.

For example, the function

f(x) = \dfrac{x^3}{3} - 2x^2 + \dfrac{14}{3}x -2

is such that

f(1) = 1,\ f(2) = 2,\ f(3) = 3

So, it may seems that doubling and tripling the input doubles and triples the output, but this is not true for every input, for example,

f(2) = 2,\ f(4) = 6

And so doubling the input didn't double the output.

Pepsi [2]3 years ago
4 0

Answer:

The function is most likely directly proportional.

More input results in more output.

Step-by-step explanation:

Apex

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