Acompany decides to survey their employees about their job satisfaction. the management of the company is responsible for taking the surveys. each manager will have a person to person interview with each employee under them in which they ask the survey questions to the employee and write down their responses. which of the following is a source of bias in this sampling method? a. employees usually complain about their jobs anyways. b. some people may be sick that day and unable to complete the survey. c. some people may be on vacation and unable to complete the survey. d. it is less likely that employees will claim that they are unsatisfied with their job to their manager.

The answer is D. It is less likely that employees will claim that they are unsatisfied with  their job to their manager.

Step-by-step explanation:

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let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1