Question

identify the vertex of the parabola f(x)=(x+3)^2+4

Answer 1

This is a normal parabola shifted three units to the left and four units up.

Answer 2

thanks, how about this one9i(2-9i) Muliply

Answer 3

18i+81

Answer 4

why isnt the 81 81i

Answer 5

because because it is 9i*(-9i)
which is -81i^2
since i^2=-1
it then becomes -81(-1)=81

Answer 6

thanks