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LiRa [457]
3 years ago
14

Help me pleaseeeeeeeo

Mathematics
2 answers:
sukhopar [10]3 years ago
6 0

Answer:

mmm x = -2 and put -2 over the square root on your calculator

Step-by-step explanation:

I hope this is right lol

Lady bird [3.3K]3 years ago
3 0

Answer: x=-2

Step-by-step explanation:

First subtract 4 from both sides

Sqrt(x+3)=1

Then square both sides

X+3=1

Then subtract 3

X=-2

Hope this helps!

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The point (2, –4) is reflected across the line y = –1. What are the coordinates of the image?
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ANSWER

The coordinates of the image are (2,2)

EXPLANATION

The mapping for a reflection across the line y=k is :

(x,y)\to (x,2k-y)

We want to find the image of the point (2,-4) after a reflection in the line y=-1.

In this case k=-1.

(2, - 4)\to (2,2( - 1)- - 4)

This simplifies to,

(2, - 4)\to (2, - 2 + 4)

(2, - 4)\to (2, 2)

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