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KonstantinChe [14]

3 years ago

10

please help really quickly i will literally give u 5 stars thanks and brainliest its also worth 21 points please help quickly i

only have 5 minutes left im begging

1 answer:

Alika [10]3 years ago

5 0

Answer:

PART B: E,B and C, A

Step-by-step explanation:

Part B is all I can help you with. (I'm Sorry)

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2 years ago

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2 years ago

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QUESTION 1

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$x = 0$

When x=0,

$y=0^2+2(0)+1 = 1$

The solution is (0,1)

QUESTION 2

The given equations are:

$y=x^2-2x - 1$

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$y= -x^2-2x-1$

We equate both equations to get:

$x^2-2x - 1 = -x^2-2x-1$

Group similar terms,

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$x = 0$

We put x=0 into any of the equations to find y.

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The solution is (0,-1).

QUESTION 3

The given equations are:

$y=x^2+2x+1$

and

$y=x^2+2x-1$

We equate both equations:

$x^2+2x+1 = x^2+2x-1$

Group similar terms:

$x^2 -x^2+2x = -1 - 1$

$0 = -2$

This is not true.

Hence the system has no solution.

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