Does the equation x^2-6x+y^2-6y =-9 intersects the y-axis

Question 5 spring semester final exam math evaluate

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)