college algebra !!!
posted by Bella .
analyze the graph of the following function.
r(x)= x^2+x6

x^2x2

r(x) = Y = x^2 + x  6
C = 6 = 1(6) = 2(3).
Select the pair of factors whose sum = 1(B):
Y = (x2)(x+3) = 0
Solution set: X = 2, and 3 = xIntercepts.
Axis: x = Xv = B/2A = 1/2. = h.
k = Yv = (1/2)^2 1/2  6
k = 6.25.
V(h,k) = V(0.5,6.25)
The following points can be used for graphing:
(x,y).
(3,0)
(2,4)
(1,6)
V(0.5,6.25)
(1,4)
(2,0)
(3,6) 
Correction:
Solution set: X = 3, and 2.