The annual salaries of all employees at a financial company are normally distributed with a mean= $34,000 and a standard deviation= $4,000. what is the z-score of a company employee who makes an annual salary of $28,000?

The correct answer is:

-1.5.

Explanation:

The formula for a z-score is

, where X is our test value, μ is the mean, and σ is the standard deviation.

Using our information, we have:

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value