Question

What is the domain and range of y=2x^2+2x+4

Answer 1

domain is R ( set of real numbers)
Range is R ( set of real numbers)

Answer 2

oh no

Answer 3

the domain is all real numbers, the range is the set of all real numbers greater than or equal to the second coordinate of the vertex

Answer 4

the first coordinate of the vertex is always \(-\frac{b}{2a}\) and the second coordinate of the vertex is what you get when you replace \(x\) by that number

Answer 5

since \[y = 2x ^{2}+2x+4\] there are no discontinuities or boundaries, so the domain is x=the set of all real numbers