Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
In the xy -plane, the graph of the line with equation y equals a intersects the graph of the quadratic function (f times x) equals x^2 minus (6 times x) plus 8 in exactly one point. What is the value of a?
(A) negative 3
(B) negative 1
(C) 1
(D) 3
(E) 4
正确答案>>>
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