Consider a circle whose size can vary. Let r represent the radius of the circle (in cm) and let C represent the circumference of the circle (in cm). Suppose the function f determines the circumference of the circle in cm, C, given its radius length in cm, r. a. Write a function formula for f. f(r) = Preview b. What does f(18) represent in this context? Select all that apply. OA circle with a circumference of 18 cm. The radius (in cm) of a circle whose circumference is 18 cm. OThe circumference (in cm) of a circle whose radius is 18 cm. OA circle with a radius of 18 cm. c. If f(a) = 18, what does a represent in this context? Select all that apply. OA circle with a circumference of 18 cm. OThe radius (in cm) of a circle whose circumference is 18 cm. OA circle with a radius of 18 cm. OThe circumference (in cm) of a circle whose radius is 18 cm. d. What values can r assume in this context? Express your answer as an interval. Preview e. What values can f(r) assume in this context? Express your answer as an interval. Preview

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.9: Combining Functions
Problem 11CYU
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Consider a circle whose size can vary. Let r represent the radius of the circle (in cm) and let C represent the
circumference of the circle (in cm). Suppose the function f determines the circumference of the circle in cm, C,
given its radius length in cm, r.
a. Write a function formula for f.
f(r) =
Preview
b. What does f(18) represent in this context? Select all that apply.
OA circle with a circumference of 18 cm.
OThe radius (in cm) of a circle whose circumference is 18 cm.
OThe circumference (in cm) of a circle whose radius is 18 cm.
OA circle with a radius of 18 cm.
c. If f(a) = 18, what does a represent in this context? Select all that apply.
OA circle with a circumference of 18 cm.
The radius (in cm) of a circle whose circumference is 18 cm.
A circle with a radius of 18 cm.
OThe circumference (in cm) of a circle whose radius is 18 cm.
d. What values can r assume in this context? Express your answer as an interval.
Preview
e. What values can f(r) assume in this context? Express your answer as an interval.
Preview
Transcribed Image Text:Consider a circle whose size can vary. Let r represent the radius of the circle (in cm) and let C represent the circumference of the circle (in cm). Suppose the function f determines the circumference of the circle in cm, C, given its radius length in cm, r. a. Write a function formula for f. f(r) = Preview b. What does f(18) represent in this context? Select all that apply. OA circle with a circumference of 18 cm. OThe radius (in cm) of a circle whose circumference is 18 cm. OThe circumference (in cm) of a circle whose radius is 18 cm. OA circle with a radius of 18 cm. c. If f(a) = 18, what does a represent in this context? Select all that apply. OA circle with a circumference of 18 cm. The radius (in cm) of a circle whose circumference is 18 cm. A circle with a radius of 18 cm. OThe circumference (in cm) of a circle whose radius is 18 cm. d. What values can r assume in this context? Express your answer as an interval. Preview e. What values can f(r) assume in this context? Express your answer as an interval. Preview
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