I need help. I don't understand how to work this out...

if possible, please explain how you got your answer. it would be very helpful!

thanks!

Consider the table below. x y -1 -5 0 5 1 11 2 13 3 11 complete the standard form equation representing the quadratic relationship displayed above, where a, b, and c are constants.

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x