A math textbook costs $60.00. The number of students who need the book is represented by x. The total cost of purchasing books for a group of students can be represented by the function f(x).

Question

shelby1290 · Answer

a) Write an equation in function notation to represent the cost of purchasing textbooks for x students

b) State the degree of this function and whether it is linear or quadratic

c) Use your equation to calculate the cost of purchasing books for a class of 30 students

d) What are the domain and range of this function, assuming that books can be purchased for two classes of students? Assume that the maximum number of students in a class is 30. Express your answers in set notation.

hwyl · Answer

OKAY LET US TRY

hwyl · Answer

IF YOU WANT TO BUY THIS BOOK, HOW MUCH WOULD YOU PAY?

shelby1290 · Answer

@hwyl i wouldn't even buy it, i don't like math lol

hwyl · Answer

THIS IS JUST A HYPOTHETICAL QUESTION

hwyl · Answer

IF YOU WERE TO BUY A $60.00 BOOK, HOW MUCH WOULD YOU EXPECT TO PAY?

shelby1290 · Answer

$60.00

hwyl · Answer

GOOD SO LET US CREATE A TABLE

hwyl · Answer

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hwyl · Answer

let us say you and your friend wanted to buy the book, how much you two pay?

hwyl · Answer

buy the book for each of you to own

hwyl · Answer

make sense

hwyl · Answer

let us update our table

shelby1290 · Answer

$120.00

hwyl · Answer

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hwyl · Answer

let us say that 20 students needed to buy the book, how much would it sum to?

shelby1290 · Answer

$1,200

hwyl · Answer

cool! 
so how about you update our table

shelby1290 · Answer

what do i plug in for the x-values?

hwyl · Answer

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