SOLUTION: The Function rule A= πr^2 is a model for the area A of a circle with a radius r. Which of the following represents this equation written in function notation? A. A(π) =

Algebra.Com
Question 957443: The Function rule A= πr^2 is a model for the area A of a circle with a radius r. Which of the following represents this equation written in function notation?
A. A(π) = r^2
B. A(r) = πr^2
C. A(x) = πr^2
D. A(y) = πr^2

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
The Function rule A= πr^2 is a model for the area A of a circle with a radius r. Which of the following represents this equation written in function notation?
A. A(π) = r^2
B. A(r) = πr^2
C. A(x) = πr^2
D. A(y) = πr^2
--------------------
If the right side doesn't say pi*r^2, cross it off.
If the left side doesn't say A(r), cross it off.

RELATED QUESTIONS

The area A of a circle with a radius of r is given by the function A(r)= π r^2. Find (answered by stanbon)
Write a function rule for each situation. the area A(r) of a circle with radius... (answered by amarjeeth123)
Find the function rule: The A(r) of a circle with radius... (answered by rapaljer)
The area of a circle with radius r is given by the formula A=πr^2. If a circle has... (answered by math_helper)
The area of a circle with radius r is given by the formula A=πr^2. If a circle has... (answered by richard1234)
The area of a circle with radius r is given by the formula A=πr^2. If a circle has... (answered by ikleyn)
The surface area (A) of a sphere with radius (r) is given by A=4πr^2. Solve this... (answered by Alan3354)
The circumference of a circle, which is represented as C = 2πr, is at least 15 cm.... (answered by josmiceli)
Hi, The area of a circle of radius r is given by the formula A=πr^2. Use this fact (answered by josgarithmetic)