標題範例:Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
Which of the following could be the equation of the function graphed in the xy-plane above?
(A)y=(-x)²+1
(B)y=-x²+1
(C)y= | x²+1|
(D)y=| x²-1|
(E)y= | (x-1)²|
謎底:D
【剖析】