The value of a function decreases by a factor of 0.6 with every unit increase in x. When x is 0, the value of the function is 12. Write an exponential function in the form fx) = ab^x to describe the situation.
a. fx) = 2 • 0.6^x
b. Fx) = 0.6 • 12^x
C. f(x) = 12 • 0.6^x
d. f(x) = 12 • 2^x

center= (-2,0)

radius= sqrt2/2

step-by-step explanation:

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.