What is M and C for the line Y=X-6?

Which graph represents the following piecewise defined function?

On a piece of paper graph f(x)=5•(0.4)^x

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3