The function f(x)=-4x+72 represents the temperature from 5 P.M. to 11 P.M., where x is the number of
hours after 5 P.M. The function d(x) = 4x +72 represents the temperature from 10 A.M. to 4 P.M., where x is the number of hours after 10 A.M.
Describe the transformation from the graph off to the graph of d.
O The graph of d is a reflection in the x-axis of the graph of 1.
O
The graph of d is a reflection in the y-axis of the graph of 1.
o
The graph of d is a vertical stretch by a factor of -1 of the graph of t.
o The graph of d is a horizontal translation 36 units left of the graph of 1.