Determine the number of points of inflection for the graph of A(x). yt -1.0 -0.5 0 0.5 10 X -0.5 -1.0 Select one: Oa 2 Ob. o Oc. 3 O d. 1The first derivative test is used to find points of inflection. Select one: O True O FalseThe function /(x) = is concave down on which interval? + 1 Select one: O a. -0.5 0.5 Oc. Ocx1 Ob. ocx l Od. x