Question

PLEASE HELP

Which formula represents a linear function?
A
area of a circle: A = tr^2

B
volume of a sphere: V = 4/3tr^3

С
area of a square: A = s^3

D
circumference of a circle: C = 2tr


t = pi

Answer 1

Option D

Explanation:

Standard equation of a linear function

• Ax+By+C=0

Means the degree is 1

Let's observe

1. Degree 2(tr^2)
2. Degree 3(r^3)
3. Degree 3(s^3)
4. degree 1

Option D is correct