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olya-2409 [2.1K]
3 years ago
15

Which pair shows equivalent expressions?

Mathematics
2 answers:
Scrat [10]3 years ago
8 0
B is the answer because 2times2/5 is 2/5 and 2times2 is for so B IS THE ANSWER!
stira [4]3 years ago
7 0

Answer:

B

Step-by-step explanation:

It is B because when we first do the left side, we distribute 2×2/5 and we get 4/5, which is on the right side of the equal sign and 2×2 is 4 which is also on the other side of the equal sign.

Hope this helps!

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Translate ƒ(x) = |x| so that it's translated up by 5 units and vertically stretched by a factor of 3. What's the new function g(
zavuch27 [327]

Given:

The parent absolute function is

f(x)=|x|

To find:

The new function if the parent function is translated up by 5 units and vertically stretched by a factor of 3.

Solution:

The translation is defined as

g(x)=kf(x+a)+b                .... (1)

Where, k is stretch factor, a is horizontal shift and b is vertical shift.

If 0<k<1, then the graph compressed vertically by factor k and if k>1, then the graph stretch vertically by factor k.

If a>0, then the graph shifts a units left and if a<0, then the graph shifts a units right.

If b>0, then the graph shifts b units up and if b<0, then the graph shifts b units down.

Parent function is translated up by 5 units. So, b=5

It is vertically stretched by a factor of 3. So, k=3.

There is no horizontal shift. So, a=0.

Now, putting k=3, a=0 and b=5 in (1), we get

g(x)=3f(x+0)+5

g(x)=3f(x)+5

g(x)=3|x|+5       [\because f(x)=|x|]

Therefore, the correct option is D.

5 0
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Answer:

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Step-by-step explanation:

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4 0
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