The vertex of a parabola is at (-2,4), and the x-intercepts are at -6 and 2. Determine the domain and range of the function.

a.
D: all real numbers
R: all real numbers
c.
D: all real numbers
R: y ≤ 4
b.
D: -6 ≤ x ≤ 2
R: y ≤ 4
d.
D: x ≤ 4
R: all real numbers

Question

The vertex of a parabola is at (-2,4), and the x-intercepts are at -6 and 2. Determine the domain and range of the function.


a.	
D: all real numbers
R: all real numbers
c.	
D: all real numbers
R: y ≤ 4
b.	
D: -6 ≤ x ≤ 2
R: y ≤ 4
d.	
D: x ≤ 4
R: all real numbers

zzr0ck3r · Answer

if its a quadratic, then are there any x we CANT put in?

if the vertex is at some point P(x,y) then y is either the largest or the smallest value it will obtain.