Someone pls help :C its a quiz and if i dont get this done then ill get in trouble

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Show all work to identify the discontinuity and zero of the function f of x equals 6 x over quantity x squared minus 36