Answer:
y^2-y^1/x^2-x^1
Step-by-step explanation:
Answer : every point on a line satisfies the related linear equation.A point that is on both lines (the intersection point) satisfies both equations.
Answer: 
Step-by-step explanation:
x^2+y^2=r^2 --> subtract x^2 to other side
y^2=r^2-x^2 --> square root both sides
y=sqrt(r^2-x^2)
I think it’s 5 I’m not really for sure