Learn to graph a circle when given two points o the diameter

Learn how to write the equation of a circle given different pieces of information. When writing the equation of a circle you will be work from the general equation of a circle and plug in our given information such as the radius, center, or point that lies on the graph.
#conicsections #circleconicsections

[NobodyzJelly]

I fucking love this dude, makes me feel like I'm in high school again. The targeted name calling mid lesson is my favorite cuz that used to always be me.

"so what were going to do here ALEX is take the radius..."

[fakeaccount]

Your class lectures are helping me to learn material and teach my sons here in New Jersey. Do you have a patreon account or post office box where I can mail you a gift card? I'm very grateful for what you are doing.

[sheryl]

I agree, thank you Brian I’m able to learn from you to teach my son in Ontario!

[s.stapes]

omg I started to think I was in his class and began yelling "radius RADIUS"

[kalanigramento]

I was looking for this for over 20 minutes thank u

[erd]

Couldnt you have, once you found center (h, k), just picked one of the two points on the circle and use that x and y and plug it right into the standard form equation of a circle and solve for r?

For example, using the point (7, 6):
r^2 = (7-3)^2 + (6-(-1))^2
r^2= 16 + 49
r^2= 65
r= 65^1/2
So then r would equal the square root of 65.

[jaqching]

What if the end points are given and an equation of the line? What formula do you use?

[hilanisamar]

What if the given endpoints are fractions? (9/2, 4) (-3/2, -2)?

[mannycasanova]

He found the distance at the end, not the radius. r is half of square root of 65.

[crispanerio]

2:55 how did he solve that, i don`t get it

[aptx-ewgq]

What if there's three given endpoints?

[marixiuy]

Is it always should be square root of 65?