A 5-digit combination lock with digits 0-9 can be opened only if a correct combination of digits is chosen. Find the
probability of guessing the correct combination if:
A. no digit is repeated
B. digits can repeat and zero is not one of the digits in the combination

you ignore the remainder, therefore the answer is y = x+2

step-by-step explanation:

you have to divide the denominator by the numerator. you can use synthetic division or long division.

[-5] .     1 .     7 .     11

x + 2 + 1/x+5

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.