Touch x-axis

Find the equations of circles that pass through points A (-2; 4) and B (0; 2) and touch the x-axis.

Result

a = (Correct answer is: a=pow(x+2, 2)+pow(y-2, 2)=4)
b = (Correct answer is: b=pow(x-6, 2)+pow(y-10, 2)=100)

Solution:

$b=\left(x-6{\right)}^{2}+\left(y-10{\right)}^{2}=100$

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Showing 1 comment:
Math student
how do you end up with n=r ?

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