The discount on an item is directly proportional to the original price of an item. The discount of a $64 item is $16. Which graph represents this direct-variation relationship?

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asked Jul 20, 2018 208k views

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The discount on an item is directly proportional to the original price of an item. The discount of a $64 item is $16. Which graph represents this direct-variation relationship?

Mathematics
high-school

Gaurav Patil asked

by Gaurav Patil

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3 votes

Answer:

i got this question on usatestprep the answer is A

Explanation:

Jescanellas answered Jul 22, 2018

by Jescanellas

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4 votes

Direct variation means y=kx so

16=64k, k=16/64=1/4

d(p)=x/4 (the discount as a function of the original price)

Kyuuhachi answered Jul 24, 2018

by Kyuuhachi

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