9
algebraWhich system has exactly one solution?
A
and
B
and
C
and
D
and
Correct Answer: A
Choice A is the correct answer. Different slopes.
- Slopes: 2 and 3 (Different).
- Result: Lines with different slopes ALWAYS intersect at exactly one point.
💡 Strategic Tip: Different slopes = One solution. Same slope = 0 or Infinite solutions.
Choice B is incorrect because parallel (0 solutions). Choice C is incorrect because coincident (Infinite). Choice D is incorrect because parallel vertical lines.