temoshojayne
12.04.2020 •
Mathematics
Please help! Stuck on this one and my whole assignment is based around this question.
The average annual cost of college tuition at private 4-year institutions can be modeled by where x is the number of years after 2006 and y is the average tuition in dollars.
1.Find the y-intercept of the graph of this equation AND explain its meaning.
2.Find the approximate cost of tuition and fees in 2010. Write the information as an ordered pair AND in a sentence.
3.In what year is the average cost of tuition approximately $37,000. Write a sentence explaining the meaning of your answer.
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Ответ:
Use the slope intercept formula. -3-5/ 5-(-3) = -8/ 5+3 = -8/8 or -1. So m= (-1)