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Math things and js

I’m not really good at math involving circles, so I honestly have no idea how to do this How would you find the 2 y positions on a circle with x? the center of the circle is on (0,0) And the radius is 5 so if your at x = 2 or something, how could you find the y positions?

14th Apr 2022, 8:43 PM
ITDW
1 Respuesta
0
y=+-✓21 Here is how: The general equation is {(x - a)^2} + {(y - b)^2} = {r^2} In your case a=b=0, r^2=25 {x ^2} + {y ^2} = 25 Plug in x= 2 and you'll get: y^2=25-x^2 y^2=21 y=+-✓21 _____ You can try doing it with x=4, answer should be y=+-3
14th Apr 2022, 9:01 PM
Lior Bakal
Lior Bakal - avatar