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ch4aika [34]
3 years ago
9

How to find the equation of a line with two points.

Mathematics
1 answer:
pogonyaev3 years ago
8 0

Step-by-step explanation:

First you want to fine the slop (rise over run) and the y-intercept of both lines

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The correct answer to this question would be 
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y=x^2 + x - 2

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Replace y in the second equation:

x + x^2 + x -2 = 1

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x^2 + 2x -2 = 1

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x^2 + 2x -3 = 0

Factor:

(x-1) (x+3) = 0

Solve for both x's:

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Yanka [14]
Represent 'a number' by x
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7x=9+4x
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Cos(7π/6)= a. 1/2 b.-1/2 c.√3/2 d.-√3/2 Help please?
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Answer:

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Step-by-step explanation:

Remember your unit circle.

Alternatively, you can plug in cos(7π/6) into your calc (Put it in rad mode) and calculate your answer.

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