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ella [17]
3 years ago
7

Write the equation of the graph obtained when the graph of y=1/x is compressed vertically by a factor of 0.25, translated 4 unit

s right, and then translated 3 units up.
Mathematics
2 answers:
Shtirlitz [24]3 years ago
8 0

Answer: The equation is y = 0.25/(x - 4) + 3

Step-by-step explanation:

If we have a function y = f(x)

A compression means that we multiply the function by a factor smaller than 1.

Then the vertical compression by a factor of 0.25 is:

y = 0.25*f(x)

a translation by A units to the right, means that we need to valuate the function in x - A.

So now we have:

y = 0.25*f(x - 4)

A translation in the y-axis means that we need to add a constant to the equation, then if we tralate it by 3 units up, we have:

y = 0.25*f(x - A) + 3

Then, if f(x) = 1/x

Our new equation is:

y = 0.25/(x - 4) + 3

Marizza181 [45]3 years ago
5 0

Answer:

g ( x ) = 0.25 / ( x - 4 ) + 3

Step-by-step explanation:

Solution:-

- The given function is defined as an inverse function:

                           f ( x ) = 1 / x

- The transformation on the function of f ( x ) are of three kinds. We will use a general form to look at the effect of each transformation.

             f ( x ) --- > g ( x ) = [ \frac{a}{( x +/- b)}  ] + c

Where a,b, and c are constants for transformation.

- The effect of constant a:

               

            a > 1 ------ > Flattens the graph  

            0 < a < 1 -------- > Compresses the graph vertically

- The effect of constant b:

               

            b > 0 ------ > Horizontal shift to left

            b < 0 -------- > Horizontal shift to right

- The effect of constant c:

               

            c > 0 ------ > Vertical shift up

            c < 0 -------- > Vertical shift down

- Now we will determine the result of function after each transformation.

  • Compressed vertically by a factor of 0.25. Hence, a = 0.25 [ 0 , 1 ]

                        k ( x ) = 0.25 / x

  • Translated 4 units right. The value of b = -4 , right shift : b < 0.

                      j ( x ) = 0.25 / ( x - 4 )

  • translated 3 units up. The value of c = 3, up shift. c > 0

                     g ( x ) = 0.25 / ( x - 4 ) + 3

Hence, the resulting function of all the mentioned transformations of original function f ( x ) is given as g ( x ):

                    g ( x ) = 0.25 / ( x - 4 ) + 3

           

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Suppose the number of hours boys B and the number of hours girls G take to complete their homework is modeled by B=2n+5 and G=3n
zimovet [89]

The total number of hours taken by n students is modeled by  T =5n+4 .

<u>Step-by-step explanation:</u>

Here we have , Suppose the number of hours boys B and the number of hours girls G take to complete their homework is modeled by B=2n+5 and G=3n-1, where n is the number of students. We need to  write a function that models the total number T of hours it takes boys and girls to complete their homework for n students .

  • The number of hours boys take to complete their homework, B=2n + 5
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We are to derive the total number T of hours taken by n students.

Total number of Hours

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Step-by-step explanation:

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