PreCalc/Trig...
posted by Anonymous
Am I right?
Consider the function y=x^2+5x2. What would happen to the graph if (x  3) was substituted in place of the x?
A. The graph would shift up 3 units.
B. The graph would shift down 3 units.
C. The graph would shift 3 units to the right. <
D. The graph would shift 3 units to the left.

Henry
Eq1: Y = x^2 + 5x  2
h = B/2A = 5/2
k = (5/2)^2 + 5*(5/2)  2 = 25/4  25/2  2 = 25/4  50/4  8/4 = 33/4
V(5/2, 33/4)
Y = (x3)^2 + 5(x3)  2
Eq2: Y = x^2  x  8
h = B/2A = 1/2
k = (1/2)^2  1/2  8 = 8 1/4 = 33/4
V(1/2, 33/4).
D. Shifted 3 units to the right.
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