What is the purpose of a regression line?

A- to connect all the points
B- to show the general tendency of the points in a scatterplot
C- to provide a scale for the x-coordinates of the points in a scatterplot
D- to provide a scale for the y-coordinates of the points in a scatterplot

Cameron indoor stadium at duke university is one of the most revered sites in all of college basketball, as well as in all of sports period. duke’s men’s and women’s basketball programs have attained quite a few wins in the building over the last seventy years. cameron indoor stadium is capable of seating 9,460 people. for each game, the amount of money that the duke blue devils’ athletic program brings in as revenue is a function of the number of people in attendance. if each ticket costs $45.50, find the domain and range of this function.

Consider the expression below. 9 + 4(x + 2) – 3.1 select the term that best describes "3" in the given expression. o a. coefficient variable exponent constant

Can any one me with the answers to these questions asap?