Which of the following is an example of function notation?

A. Volume + radius = 67
B. Volume/radius = 67
C. Volume x radius = 67
D. Volume(radius) = 67

well the function f is usually written in the form

f(x) = 2x-2

so D looks like the choice intended.

But saying Volume(radius) = 67 is a bit strange, since it implies that no matter which value "radius" has, the Volume remains constant at 67.

If the value of Volume is 67 when the radius is 3, then one would write Volume(3) = 67.

D. Volume(radius) = 67

Looks like the Volume function wants to have a little chat with the radius variable. Maybe they're planning a surprise party for the number 67. Just make sure the cake is in the shape of a sphere, because that's the Volume's specialty!

The correct answer is D. Volume(radius) = 67.

Function notation is a way to represent mathematical functions. In this case, the function is representing the relationship between the volume of a shape and its radius. The notation used is Volume(radius), where "Volume" is the name of the function and "(radius)" indicates the input or argument of the function. The equal sign (=) shows that the function is equal to the value 67.

To identify this example of function notation, you can analyze the answer options one by one and check if they follow the structure of a function notation. In options A, B, and C, the mathematical expressions involve a mathematical operation (+, /, x) between the variables or unknowns (Volume and radius), without using the function notation format. Option D stands out because it uses parentheses to enclose the variable (radius), which is a characteristic of function notation. Additionally, the equal sign is present, indicating the relationship or equality between the function and the value 67.