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Igoryamba
2 years ago
13

Marisol sells wedding cakes. She charges a flat fee of $245 to make the wedding cake, plus an additional $120 per tier of cake.

What linear equation can be used to graph the price (y) of one of Marisol's wedding cakes?
Mathematics
1 answer:
leva [86]2 years ago
8 0

Answer:

120x + 245 = y

x = number of additional tiers

(edited to be in the proper order)

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Y = 2 - 4x input output
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Every function is a rule which tells you how to associate inputs and outputs. The input, also known as independent variable, is often indicated with the letter x, while the output, also known as dependent variable, is often indicated with the letter y.

With this notation, we write y = f(x), read "y is a function of x", in the sense that the value of the variable y depends on the value of the variable x, and f is the function that tells you how y depends on x.

In your example, you have y = f(x) = 2-4x, which means "subtract four times the input (4x) from 2"

So, it doesn't matter which input you chose (i.e. the value for x), because you will always have to behave this way:

  • Pick an input value, x
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Here are some examples of explicit calculations: if I choose x = 2 and input, the workflow will be

  • Pick an input value, 2
  • Multiply it by four to get 8
  • Subtract this number from 2: 2-8=-6

So, if the input is 2, the output is -6

Similarly, if we choose x = 0 as input, we have:

  • Pick an input value, 0
  • Multiply it by four to get 0
  • Subtract this number from 2: 2-0=2

So, if the input is 0, the output is 2. And so on: for every possible value for x you have the correspondant value for y, with the function f telling you how to associate one with the other.

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2 years ago
14 divided by 2/7 how do I divide it and what is the anwer?
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Dividing by a fraction is like multiplying with the inverse.

So 14 / (2/7) is the same as 14 * 7/2, which is 49
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