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mestny [16]
3 years ago
14

1) Does the following graph show a function?

Mathematics
2 answers:
aleksandrvk [35]3 years ago
8 0
Yes it does show a function
Andrei [34K]3 years ago
4 0
No it does not for it to show function it has to go straight up and down or side to side
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The value of a computer is given by the expression 2000+(-200t) where t is the time in years.
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Any equation that has the same gradient is parallel to it. E.G y = 4x + 5
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Mars2501 [29]

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What is the quadratic equation if the solutions are -9+ √65 /2, -9- √65 /2
liberstina [14]

Answer:

4x^2+72x+259=0

Step-by-step explanation:

If x_1 and x_2 are the solutions to the quadratic equation, then this equation can be written as

(x-x_1)(x-x_2)=0

In your case,

x_1=-9+\dfrac{\sqrt{65}}{2}\\ \\x_1=-9-\dfrac{\sqrt{65}}{2}

Then the equation is

\left(x-\left(-9+\dfrac{\sqrt{65}}{2}\right)\right) \left(x-\left(-9-\dfrac{\sqrt{65}}{2}\right)\right)=0\\ \\\left(x+9-\dfrac{\sqrt{65}}{2}\right)\left(x+9+\dfrac{\sqrt{65}}{2}\right)=0\\ \\x^2+9x+\dfrac{\sqrt{65}}{2}x+9x+81+\dfrac{9\sqrt{65}}{2}-\dfrac{\sqrt{65}}{2}x-\dfrac{9\sqrt{65}}{2}-\dfrac{65}{4}=0\\ \\x^2+18x+\dfrac{259}{4}=0\\ \\4x^2+72x+259=0

4 0
3 years ago
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