• anonymous
I do not understand the answers I was given to this question. The average cost of tuition and fees at private four-year colleges was $16,200, and in 2005 it was $20,100. Sketch a line that passes through the points (2000, 16200) and (2005, 20100). My question is - find the slope-intercept form of the line in the sketch. What is the y-intercept and does it have meaning in this situation?
  • schrodinger
See more answers at
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly


Get your free account and access expert answers to this
and thousands of other questions

  • anonymous
Alright, I'll solve it showing the steps, and see if that makes a bit more sense. The slope intercept equation for a line is this: \[y = mx + b\] The m is the slope of the line. You find the slope using this: \[\Delta Y \div \Delta X = Y _{1} - Y _{2} div X _{1} - X _{2}\] Using your values and substituting them in, you have: \[(20100 - 16200) \div (2005 - 2000) = (3900) \div (5) = 780.\] So, the slope is 780. Then we need to find the y-intercept, which in the equation is represented by the variable b. We have a coordinate in the (x,y) format, so we will use those to solve for b: \[y = mx + b\] \[16200 = (780)(2000) + b\] \[16200-1560000 = b\] \[b = -1543800\] Obviously b is kinda a wacky number, but it is the point at which the line reaches the y axis.

Looking for something else?

Not the answer you are looking for? Search for more explanations.