the graph of y=√x is shifted 2 units up and 5 units left, Which equation represents the new graph?

A. y=-√x+5) +2

B. y=-√x-2) +5

C. y=-√x+2) -5

D. y=-√x-5) +2

Respuesta :

Answer:

A. [tex]y=\sqrt{x+5}+2[/tex].

Step-by-step explanation:

We are given the function [tex]y=\sqrt{x}[/tex].

Now, the function is shifted 2 units up and 5 units to the left.

That is, the function is translated 2 units up and 5 units to the left.

Since, we know,

Translation of 'k' units up changes the function [tex]f(x)[/tex] to [tex]f(x)+k[/tex].

So, the function translated 2 units up is [tex]y=\sqrt{x}+2[/tex].

Translation of 'k' units to the left changes the function [tex]f(x)[/tex] to [tex]f(x+k)[/tex].

So, the new function translated 5 units left is [tex]y=\sqrt{x+5}+2[/tex].

Hence, the equation representing the new function is [tex]y=\sqrt{x+5}+2[/tex].

y = √(x + 5) + 2

Further explanation

Given:

The graph of [tex]y = \sqrt{x}[/tex] is

  • shifted 2 units up, and
  • 5 units left.

Question:

Which equation represents the new graph?

The Process:

The translation is a form of transformation geometry.

Translation (or shifting): moving a graph on an analytic plane without changing its shape.

In general, given the graph of y = f(x) and v > 0, we obtain the graph of:  

  • [tex]\boxed{ \ y = f(x) + v \ }[/tex] by shifting the graph of [tex]\boxed{ \ y = f(x) \ }[/tex] upward v units.  
  • [tex]\boxed{ \ y = f(x) - v \ }[/tex] by shifting the graph of [tex]\boxed{ \ y = f(x) \ }[/tex] downward v units.  

That's the vertical shift, now the horizontal one. Given the graph of y = f(x) and h > 0, we obtain the graph of:  

  • [tex]\boxed{ \ y = f(x + h) \ }[/tex] by shifting the graph of [tex]\boxed{ \ y = f(x) \ }[/tex] to the left h units.  
  • [tex]\boxed{ \ y = f(x - h) \ }[/tex] by shifting the graph of [tex]\boxed{ \ y = f(x) \ }[/tex] to the right h units.

Therefore, the combination of vertical and horizontal shifts is as follows:  

[tex]\boxed{\boxed{ \ y = f(x \pm h) \pm v \ }}[/tex]  

The plus or minus sign follows the direction of the shift, i.e., up-down or left-right.

- - - - - - - - - -

Let's solve the problem.

Initially, the graph of [tex]y = \sqrt{x}[/tex] is shifted 2 units up.

[tex]\boxed{y = \sqrt{x} \rightarrow is \ shifted \ 2 \ units \ up \rightarrow \boxed{ \ y = \sqrt{x} + 2 \ }}[/tex]

Followed by shifting 5 units left.

[tex]\boxed{y = \sqrt{x} + 2 \rightarrow is \ shifted \ 5 \ units \ left \rightarrow \boxed{ \ y = \sqrt{x + 5} + 2 \ }}[/tex]

Thus, the equation that represents the new graph is [tex]\boxed{\boxed{ \ y = \sqrt{x + 5} + 2 \ }}[/tex]

The answer is A.

Learn more

  1. Which phrase best describes the translation from the graph y = 2(x – 15)² + 3 to the graph of y = 2(x – 11)² + 3? https://brainly.com/question/1369568
  2. The similar problem of shifting https://brainly.com/question/2488474  
  3. What transformations change the graph of (f)x to the graph of g(x)? https://brainly.com/question/2415963

Keywords: the graph of, y = √x, shifted 2 units up, 5 units left, which, the equation, represents, the new graph, horizontal, vertical, transformation geometry, translation

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