Question

HELP AND MEDAL how do you graph a circle ????????

Answer 1

@pooja195 @dan815

Answer 2

use those compass things

Answer 3

or a penny

Answer 4

i need to graph and find the equation of the 3 point line

Answer 5

@johnweldon1993

Answer 6

lol can u explain

Answer 7

well if you look at the picture its more of a semi oval instead of a circle @Astrophysics

Answer 8

it is a circle not oval :)

Answer 9

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

Answer 10

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 :)

Answer 11

not the green parabola the white one on the bottom

Answer 12

Oh what the... >.< why did they draw attention to the green then XD

Answer 13

i was trying to figure it out and thats the best it got -.-