NEED HELP PLZZZ
Write an equation that represents the transformations formed by the following items
(a) horizontally shifting the graph 4 units to the left of f(x) = sqrt(x) and then vertically compression by a factor of 1/3
(b) vertically stretching the graph by a factor of 4 of f(x) = sqrt(x) and then vertically shifting the graph 3 units up
(c) horizontally stretching the graph of f(x) = sqrt(x) by a factor of 2 and then vertically shifting the graph units down

Respuesta :

Using translation concepts, it is found that the equations that represents the transformations formed by the following items are given by:

  • a) [tex]g(x) = \frac{1}{3}\sqrt{x + 4}[/tex]
  • b) [tex]g(x) = 4\sqrt{3} + 3[/tex]
  • c) [tex]g(x) = \sqrt{\frac{x}{2}} - 3[/tex]

What is a translation?

  • A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

Item a:

The function is:

[tex]f(x) = \sqrt{x}[/tex]

Horizontal shift of 4 units to the left, hence:

[tex]g(x) = f(x + 4) = \sqrt{x + 4}[/tex]

Vertical compression by a factor of [tex]\frac{1}{3}[/tex], hence a multiplication by [tex]\frac{1}{3}[/tex], that is:

[tex]g(x) = \frac{1}{3}\sqrt{x + 4}[/tex]

Item b:

Vertical stretch by a factor of 4, that is, a multiplication by 4, so:

[tex]4f(x) = 4\sqrt{3}[/tex]

Vertical shift of 3 units up, hence addition of 3, that is:

[tex]g(x) = 4\sqrt{3} + 3[/tex]

Item c:

Horizontal stretch by a factor of 2, that is:

[tex]g(x) = f(\frac{1}{2}x) = \sqrt{\frac{x}{2}}[/tex]

Vertical shift of 3 units down, hence subtraction by 3, that is:

[tex]g(x) = \sqrt{\frac{x}{2}} - 3[/tex]

You can learn more about translation concepts at https://brainly.com/question/4521517

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