Question

What is x2+y2=13 where y =2

Answer 1

Is the equation \[\Large x^2+y^2 = 13\] ?

Answer 2

they gave you y which is 2
so plug that where is y into equation and take square of y value

Answer 3

let me know what you get after that so we can continue

Answer 4

picking up from where @Nnesha left