algebra

[hidden drift]

If 0 < xy < 1, then which of the following is possible?
a. y < 0 < x b. x < −2 and y > 2 c. x + y = 10 d. 1
x
< 0 <

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[hidden drift]

If 0 < xy < 1, then which of the following is possible?
a. y < 0 < x
b. x < −2 and y > 2
c. x + y = 10
d. 1/x < 0 < 1/y

[steep hedge]

remember that negative times a positive is a negative

[hidden drift]

+close