If x < 0 and y < z then _____?
- xy ≤ yz
- xy ≤ yz
- xy < yz
- xy > yz
Explanation
Given x < 0 and y < z:
When multiplying both sides of y < z by x, the inequality sign flips because x is negative:
xy > xz
Related MCQs
- 2x² + 4 = 9x
- 2x² + 9 = 4x
- 2x² + 9 = 4x
- x² + 4 = 9x
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