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Phantasy [73]
2 years ago
3

Solve x2 - 4 = 5 by graphing the related function.

Mathematics
1 answer:
LenKa [72]2 years ago
4 0

Answer:

D ±3

Step-by-step explanation:

We can solve this equation for x

x^{2} -4=5\\x^{2} =9Take the square root of both sides

x=±3

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Answer:

No, unless the function decides to follow a different pattern. See more explanation below.

Step-by-step explanation:

He is wrong, the table doesn't tell us what happens at x=6.

It does tell us the following:

1) When x=-4, f(x)=6.

2) When x=-2, f(x)=3.

3) When x=0, f(x)=-1.

4) When x=2, f(x)=-4.

So maybe he got it the x and f(x) value switched in his brain.

Because according to 1) x=-4 when f(x)=6.

If the points keep having x increase while y decreases, then every x>2 will have a y less than -4 correspond to it.

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2 years ago
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Answer: 13\sqrt{7}

Step-by-step explanation:

In the simple radical form there are no square root is remain to find.

Since, the given expression,

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Step-by-step explanation:

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