rebeccaxhawaii
  • rebeccaxhawaii
HELP AND MEDAL how do you graph a circle ????????
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
rebeccaxhawaii
  • rebeccaxhawaii
@pooja195 @dan815
dan815
  • dan815
use those compass things
ParthKohli
  • ParthKohli
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dan815
  • dan815
or a penny
rebeccaxhawaii
  • rebeccaxhawaii
i need to graph and find the equation of the 3 point line
rebeccaxhawaii
  • rebeccaxhawaii
@johnweldon1993
Astrophysics
  • Astrophysics
|dw:1449987441927:dw|
rebeccaxhawaii
  • rebeccaxhawaii
lol can u explain
rebeccaxhawaii
  • rebeccaxhawaii
well if you look at the picture its more of a semi oval instead of a circle @Astrophysics
AlexandervonHumboldt2
  • AlexandervonHumboldt2
it is a circle not oval :)
johnweldon1993
  • johnweldon1993
As shown above, the general equation for a circle with center (h,k) is \(\large (x - h)^2 + (y-k)^2 = r^2\) Your center happens to be at the point (0,0) so we can simplify that equation to just \[\large x^2 + y^2 = r^2\] Now the only thing is...that is the equation for a FULL circle, we have a semi circle here So if we take our equation and solve for 'y' \(\large y = \sqrt{r^2 - x^2}\) is the top half of our circle \(\large y = -\sqrt{r^2 - x^2}\) is the bottom half <--which we dont need All we need now...is to plug in what the radius of our circle is equal to
johnweldon1993
  • johnweldon1993
And indeed, it is a semi-circle not an oval, as you can see the distance from the center remains consistent all the way around :)
rebeccaxhawaii
  • rebeccaxhawaii
not the green parabola the white one on the bottom
johnweldon1993
  • johnweldon1993
Oh what the... >.< why did they draw attention to the green then XD
rebeccaxhawaii
  • rebeccaxhawaii
i was trying to figure it out and thats the best it got -.-

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