The independent variable, x, represents the <u>number of years worked</u>, and the dependent variable is the <u>total salary</u>, because the <u>total salary</u> depends on the <u>number of years worked</u>. A function relating these variables is D(x) = [y = 4,000x + 45,000] So D(3) = [$57,000], meaning 3 years of work will give a <u>total salary</u> of $57,000.
<h3>The types of variables.</h3>
In an experiment, there are two (2) main types of variables and these include:
<h3>What is an independent variable?</h3>
An independent variable can be defined as the variable that is being manipulated by an experimenter or researcher. This ultimately implies that, it is typically considered to be the cause in an experiment and represented by x.
In this scenario, we can infer and logically deduce that the independent variable, x, represents the <u>number of years worked</u>, and the dependent variable is the <u>total salary</u>, because the <u>total salary</u> depends on the <u>number of years worked</u>.
A function relating these variables is D(x) = [y = 4,000x + 45,000].
So D(3) = [$57,000], meaning 3 years of work will give a <u>total salary</u> of $57,000.
Read more on independent variable here: brainly.com/question/82796
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