Aclock tower has a circular clock face with an circumference of 144 pi ft

*the top question for the picture btw

Circumference is found by multiplying the diameter by PI.

Since the circumference is given in terms of PI, the diameter is the number given.

The diameter is 144 feet.

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

a

b

d

step-by-step explanation: