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July 3rd, 2009, 05:15 PM
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| |  Angle problem: Changing algebric expressions to angles
We prefer that the answers are defined in RR to the second power (I don't know what RR to the second power means). Answer graphically each answer in the same cartesian coordinate system.
f(x)=2x
h(x)=2x+2
g(x)2x-1
i(x)=2x-4 |
July 3rd, 2009, 05:29 PM
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Quote:
Originally Posted by Julian.Ignacio  We prefer that the answers are defined in RR to the second power (I don't know what RR to the second power means). Answer graphically each answer in the same cartesian coordinate system.
f(x)=2x
h(x)=2x+2
g(x)2x-1
i(x)=2x-4 | This question is still not clear. Please state clearly what Changing algebric expressions to angles is meant to mean. Do you mean find the angle the line makes with the x-axis?
__________________ There are two things you should never try to prove: the impossible and the obvious. The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low and achieving our mark. (Michelangelo Buonarroti)
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July 3rd, 2009, 05:31 PM
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Yes...I'm sorry Mr.Fantastic, I study math in french so I gotta like translate some words which makes it hard for me to explain ;P, and yes an x-axis..sorry. |
July 3rd, 2009, 05:47 PM
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In a line  ,  ,  is the angle between the line and the positive direction of the x-axis.
Here is a formula for you.
Given that is the angle formed from the line to line  , then 
Last edited by chengbin; July 4th, 2009 at 07:49 AM.
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July 3rd, 2009, 05:49 PM
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Quote:
Originally Posted by Julian.Ignacio We prefer that the answers are defined in RR to the second power (I don't know what RR to the second power means). Answer graphically each answer in the same cartesian coordinate system.
f(x)=2x
h(x)=2x+2
g(x)2x-1
i(x)=2x-4 | The statement of that question is totally incomprehensible as far as I am concerned. |
July 3rd, 2009, 08:48 PM
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Quote:
Originally Posted by chengbin In a line , , where  is the angle. Mr F adds: Between the line and the positive direction of the x-axis.
Here is a formula for you.
Given that is the angle formed from the line to line , then | ..
__________________ There are two things you should never try to prove: the impossible and the obvious. The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low and achieving our mark. (Michelangelo Buonarroti)
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