↝ Quadratic Function has the domain of all real numbers. (Even not given the specific domain.)
↝ The equation [tex]y=-3(x-5)+8[/tex] is a parabola with (5,8) as a vertex. We call the equation [tex]y=a(x-h)^2+k[/tex] as vertex equation.
The domain of -3(x-5)+8 is all set of real numbers.
↝ Interval Notation ↝
Since the domain of the equation is set of all real numbers.
Therefore, the domain is x ∈ R or (-∞,∞) or -∞<x<∞
There of them work. Recall that the domain of quadratic function is all set of real numbers.
