Team X can set up chairs in the gym in 15 minutes and team Y can set up the chairs in 20 minutes. How much time would they take,
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the equation is a quadratic one, and it has a positive coefficient on the leading term, meaning, is opening upwards, so it has a "burrow" for the vertex.
the minimum or lowest point for a quadratic opening upwards is, well, the vertex point :), the "x" value is the year, the "y" or f(x) value is the population, we're asked for the year, or the x-coordinate of the vertex
well
The graph would look like first one, or like this:
Hope this helped! c:
Hope this helped! c: