anonymous
  • anonymous
Gloria has a lunch account in the school cafeteria. The balance, f(x), in her account can be represented by the function f(x) = –1.50x + 40, where x is the number of meals purchased. Suppose –1.50 changed to –2.75. What does this mean in the context of the problem?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Teddyiswatshecallsme
  • Teddyiswatshecallsme
What do you think it means?
anonymous
  • anonymous
i think it means that your suppose to replace -1.50 with -2.75
anonymous
  • anonymous
and how the balance is going to increase or decrease

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Teddyiswatshecallsme
  • Teddyiswatshecallsme
Okay..
Teddyiswatshecallsme
  • Teddyiswatshecallsme
So is the balance increasing or decreasing?
anonymous
  • anonymous
Changing –1.50 to –2.75 means her initial balance has decreased. Changing –1.50 to –2.75 means her initial balance has increased. Changing –1.50 to –2.75 means the price per meal has decreased. Changing –1.50 to –2.75 means the price per meal has increased.
Teddyiswatshecallsme
  • Teddyiswatshecallsme
If its going from -1.50 to -2.75 has in increased or decreased?
anonymous
  • anonymous
it decreased
Teddyiswatshecallsme
  • Teddyiswatshecallsme
I started off asking the wrongs questions i'm sorry. What do you think 1.50 represents in this equation?
anonymous
  • anonymous
her balance on her account
Teddyiswatshecallsme
  • Teddyiswatshecallsme
No. What is the constant in the equation?
anonymous
  • anonymous
40
Teddyiswatshecallsme
  • Teddyiswatshecallsme
Okay, look. Here's the only way i know how to explain it. -1.50 is the cost per meal x is the variable used to represent the # of meals Gloria eats. So if -1.50 changes to -2.75, what does that say about the equation?
Teddyiswatshecallsme
  • Teddyiswatshecallsme
We already know that -1.50 is MORE THAN -2.75... What is happening to the cost per meal?
anonymous
  • anonymous
it decreases
Teddyiswatshecallsme
  • Teddyiswatshecallsme
Okay so what is the answer?
anonymous
  • anonymous
Changing –1.50 to –2.75 means the price per meal has decreased.
anonymous
  • anonymous
am i right
Teddyiswatshecallsme
  • Teddyiswatshecallsme
No. If the price of the meal was 1.50 you're spending one fifty therefore if the price goes from 2.75 then you're paying MORE.
Teddyiswatshecallsme
  • Teddyiswatshecallsme
From 1.50-2.75
Teddyiswatshecallsme
  • Teddyiswatshecallsme
It's D.
anonymous
  • anonymous
ohhhhhh
Teddyiswatshecallsme
  • Teddyiswatshecallsme
Yes.
anonymous
  • anonymous
thank you sooo much sorry for not getting it sooner ill give you a medal for helping me
anonymous
  • anonymous
Correct on test.

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