Answer:
no (or maybe)
Step-by-step explanation:
NO:
Two lines with the same slope and y-intercept will be identical lines. Every point that satisfies one equation will also satisfy the other, so there will be an infinite number of solutions. (not no solution)
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MAYBE:
If those two lines are part of a larger system that includes parallel lines (or non-intersecting curves), then that larger system will have no solution.
