explain in words what f( r+1) represents?

Question

A= f (r) = the area of a circle of radius r

Answer 1

If in f(r) you replace r by r + 1, you get f(r + 1).
As f(r) represents the area of a circle of radius r, that means:
f(r + 1) represents the area of a circle of radius r + 1.

You replace r by r + 1 in the formula and in the statement.

Answer 2

Hello,

It would be the area of a circle of radius r+1 or f(r+1) = (r+1)^2 * pi


Hope This Helps!

Answer 3

If f(r) = area of circle of radius r and
area of circle of radius r = pi(r^2) then
f(r) = pi(r^2)
f(r+1) = pi(r+1)^2

Answer 4

f(r)=pi*r^2
f(r+1)=pi*(r+1)^2

In words, f(r+1) represents the area of a circle with the radius increased by 1 unit.

Answer 5

I don`t think that you understand the function notation clearly.

If you are given f[x] = 2x+3, it is read as " the function of x which is 2x+3"

If you are then asked to find f[5], you are asked to find the value of the function when x = 5,

So, in this case, f[5] = 2x5 + 3

= 10 +3

= 13.

Having understood that, the previous answers adequately explain the question you originally posed. hope this helps, and my apologies if you already understood what I`ve done, Twiggy.