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Mrs. Galicia has a cupcake company. The amount of money earned is represented by
() = 12√ + 1 where x is the number of years since 2015.
(a) After how many years does she earn $36
(b) Mrs. Galicia changes the purchase price and the new function, ℎ() = 12^3√ − 2 + 1.
What transformations have occurred from the original Cupcake company function, g(x)?


Sagot :

Using the profit function, it is found that:

a) She earns $36 after 25 years.

b) The function was shifted right 4 units and up 1 units.

What is the profit function?

The profit, in x years after 2015, is given by:

[tex]p(x) = 12\sqrt[3]{x + 2}[/tex]

Item a:

She earns $36 after x years, considering x for which p(x) = 36, hence:

[tex]p(x) = 12\sqrt[3]{x + 2}[/tex]

[tex]36 = 12\sqrt[3]{x + 2}[/tex]

[tex]\sqrt[3]{x + 2} = 3[/tex]

[tex](\sqrt[3]{x + 2})^3 = 3^3[/tex]

[tex]x + 2 = 27[/tex]

[tex]x = 25[/tex]

She earns $36 after 25 years.

Item b:

The new function is:

[tex]h(x) = 12\sqrt[3]{x - 2} + 1[/tex]

At the domain, we have that [tex]x + 2 \rightarrow x - 2[/tex], that is, [tex]x \rightarrow x - 4[/tex], hence it was shifted right 4 units.

At the range, we have that [tex]h(x) = h(x - 4) + 1[/tex], hence it was shifted up 1 unit.

You can learn more about functions at https://brainly.com/question/24380382