The bar graph shows the average cost of tuition and fees at private four-year colleges in the United States. Source: The College Board The formula T = 21x2 + 862x + 15,552 models the average cost of tuition and fees, T, at private U.S. colleges for the school year ending x years after 2000. Use this information to solve Exercises 131-132. a. Use the formula to find the average cost of tuition and fees at private U.S. colleges for the school year ending in 2012. b. By how much does the formula underestimate or overestimate the actual cost shown by the graph for the school year ending in 2012? c. Use the formula to project the average cost of tuition and fees at private U.S. colleges for the school year ending in 2022.
The bar graph shows the average cost of tuition and fees at private four-year colleges in the United States. Source: The College Board The formula T = 21x2 + 862x + 15,552 models the average cost of tuition and fees, T, at private U.S. colleges for the school year ending x years after 2000. Use this information to solve Exercises 131-132. a. Use the formula to find the average cost of tuition and fees at private U.S. colleges for the school year ending in 2012. b. By how much does the formula underestimate or overestimate the actual cost shown by the graph for the school year ending in 2012? c. Use the formula to project the average cost of tuition and fees at private U.S. colleges for the school year ending in 2022.
Solution Summary: The author analyzes how the model underestimates the value of the tuition fee.
The bar graph shows the average cost of tuition and fees at private four-year colleges in the United States.
Source: The College Board
The formula
T = 21x2 + 862x + 15,552
models the average cost of tuition and fees, T, at private U.S. colleges for the school year ending x years after 2000. Use this information to solve Exercises 131-132.
a. Use the formula to find the average cost of tuition and fees at private U.S. colleges for the school year ending in 2012.
b. By how much does the formula underestimate or overestimate the actual cost shown by the graph for the school year ending in 2012?
c. Use the formula to project the average cost of tuition and fees at private U.S. colleges for the school year ending in 2022.
Solve the equation. Write the smaller
answer first.
2
(x-6)²
= 36
x =
Α
x =
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Write a quadratic equation in
factored form that has solutions of x
=
2 and x = = -3/5
○ a) (x-2)(5x + 3) = 0
○ b) (x + 2)(3x-5) = 0
O
c) (x + 2)(5x -3) = 0
○ d) (x-2)(3x + 5) = 0
Chapter P Solutions
College Algebra, Books A La Carte Edition Plus MyLab Math with eText -- Access Card Package (7th Edition)
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