Bunuel wrote:
If x is an integer and y = –2x – 8, what is the least value of x for which y is less than 9?
(A) –9
(B) –8
(C) –7
(D) –6
(E) –5
We need to determine the least value of x such that y < 9. Since y = -2x - 8, we have:
-2x - 8 < 9
-2x < 17
x > -17/2
x > -8.5
Since x must be an integer, its least value is when x = -8.
Answer: B
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