Hello :
let : A(3,0)
the ridus is : CA = <span>√((3-3)² +(0+13)²) = 13
</span><span>he equation of the circleis : (x-3)² + (y+13)² = 169</span>
I hope this helps you
if B midpoint for AC than AB=BC=a
AB/AC=BF/CE
a/a+a =BF/90
a/2a=BF/90
1/2=BF/90
BF=90/2
BF=45
This is slope-intercept form y=mx+b
when you substitute it, it becomes y=6x-3
Your answer is alredy in order
