y=248-398x Which of the following values of x gives the greatest value of y in the equation above?	Options:  A) 200  B) 100  C) 0.5  D) 0  E) -1
Explanation:   This is quite simple. Just by looking at the values they are all positive except two. If you enter any of the values instead of x you will get a negative y. By entering 0 you already get to positive=248. But the correct answer is -1 since this equals y=248-(398*(-1))=248+398. This is the greatest value.   Answer: Option -1
<result>E</result>
y=248-398x Which of the following values of x gives the greatest value of y in the equation above?