3 years ago

Find the slope of the line that passes through (2,1) (4,4)

Mathematics

1 answer:

Rufina [12.5K]3 years ago

4 0

To find the slope you have to subtract x sub 2 minus X sub 1 over y sub 2 minus y sub 1

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Solve x2 – 4x – 9 = 29 for x.

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$x^2 - 4x - 9 = 29 \\ x^2 - 4x - 9 - 29 = 0 \\ x^2 - 4x - 38 = 0 \\ x= \frac{-b \pm \sqrt{ b^{2} -4ac} }{2a} 
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$x= \frac{-(-4) \pm 
\sqrt{ 
(-4)^{2} -4 \times 1 \times -38} }{2 \times 1} \\ = \frac{4 \pm \sqrt{ 16 +152} }{2} \\ =\frac{4 \pm \sqrt{ 168} }{2} \\ =\frac{4 \pm 
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Simplify: 4 square root of 2 plus square root of 18 minus square root of 9

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