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Alinara [238K]
3 years ago
15

Write the equation of the line whose slope and the point through which it passes are given. Express the equation in point-slope

form.
(-2, 3) and slope m = 9
Mathematics
1 answer:
frosja888 [35]3 years ago
8 0

Answer:

i think 9

Step-by-step explanation:

im sorry this is the only question appearing on my feed for some reason so...

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Determine between which consecutive integers the real zeros of y(x) = x2 - 4x – 2 are located.
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Answer:

The zeros are x1=4.45 and x2=-0.45.

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Step-by-step explanation:

We have the function:

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As this is a quadratic function, we can calculate the zeros of the function with the quadratic equation:

x_{1,2}=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\\x=\dfrac{-(-4)\pm\sqrt{(-4)^2-4\cdot 1\cdot(-2)}}{2\cdot 1}\\\\\\x=\dfrac{4\pm\sqrt{16+8}}{2}\\\\\\x=\dfrac{4\pm\sqrt{24}}{2}\\\\\\x=\dfrac{4\pm4.9}{2}=2\pm2.45\\\\\\x_1=2+2.45=4.45\\\\x_2=2-2.45=-0.45

The zeros are x1=4.45 and x2=-0.45.

x1 is between 4 and 5.

x2 is between -1 and 0.

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