Answer:
A. The slope of the <em>"trend line" or "line of best fit"</em> indicates the relationship between the number of years worked and the hourly wage. The <em>slope</em> is positive and therefore there is a <em>positive correlation</em> between the two variables: years and hourly wage. One could infer that the number of years worked is the<em> independent variable</em> and the pay per hour is the <em>dependent variable </em>meaing that the number of years afect the hourly wage in a positive way. The <em>y-intercept</em> shows the minimum pay per hour when a person has no experience.
B. The <em>y-intercept</em> of the trend line or line of best fit represents the pay per hour when a person has no working experience. The y-intercept is given by the <em>ordered pair </em>(0, y). Where the <em>x-axis </em>represents the <em>independent variable </em>and the <em>y-axis </em>represents the <em>dependent variable.</em>
Step-by-step explanation:
A "<em>trend line" or "line of best fit</em>" is a line that is drawn and contains at least two points of the scatter plot to help one analyze if there is a trend or correlation between two variables.
The <em>slope</em> shows the inclination of that given line. If the slope is positive then there could be a positive correlation and if it's negative then there could be a negative correlation.
A <em>positive or negative correlation</em> reveals the relationship that exists between two variables. A positive correlation indicates that as one variable increases so does the other variable. In this case, as a person has more experience they tend to have a higher hourly wage.
The<em> independent variable</em> (x) is the variable that is changed or altered.
The <em>dependent variable</em> (y) is the variable that changes as a result of the changes in x.
The <em>x-axis</em> is the horizontal line of the scatter plot and often denotates the independent variable. (number of years)
The <em>y-axis</em> is the vertical line of the scatter plot and often denotates the dependent variable. (pay per hour)
The <em>y-intercept</em> is the pay per hour for a person that has no work experience.