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emmasim [6.3K]
2 years ago
14

Consider a circle whose size can vary. Let r r represent the radius of the circle (in cm) and let C C represent the circumferenc

e of the circle (in cm). Suppose the function f f determines the circumference of the circle in cm, C C, given its radius length in cm, r r. Write a function formula for f f.
Mathematics
2 answers:
Ket [755]2 years ago
8 0

Answer:

  f(r) = 2πr

Step-by-step explanation:

You know the formula for circumference in terms of radius is ...

  C = 2πr

You are being asked to write this as a function named "f". That will be ...

  f(r) = 2πr

ozzi2 years ago
7 0

Answer:

f(r)=2\pi r

Step-by-step explanation:

The formula for circumference of a circle is

C=2\pi r

where,

C represent the circumference of the circle.

r represent the radius of the circle.

It is the function f  determines the circumference of the circle in cm, C C, given its radius length in cm, r.

So, the circumference of the circle is defined by the function

f(r)=2\pi r

Therefore the required formula for function f is f(r)=2\pi r.

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f(x) = x^2+3x-10

f(x+5) = (x+5)^2+3(x+5)-10 ... replace every x with x+5

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