4 years ago

If a system of linear equations has one solution, what does this mean about the two lines

Mathematics

1 answer:

puteri [66]4 years ago

6 0

Answer:

If the two line cross, that means there is only one solution to the system.

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$\bf h(t)=-3t^2+12t\implies \stackrel{h(t)}{0}=-3t^2+12t\implies 0=-3t(t-4)\\\\[-0.35em]~\dotfill\\\\0=-3t\implies 0=t\impliedby \textit{0 seconds when it took off from the ground}\\\\[-0.35em]~\dotfill\\\\0=t-4\implies 4=t\impliedby \textit{4 seconds later, it came back down}$