it lands when the height is zero. That is when t ≈ 0.25
How did symmetry lead you to the answer of 0.2?
A jumping spider jumps from a log onto the ground below. Its height, h, in centimetres, as a function of time, t, in seconds, since it jumped can be modelled by the function h(t) = -490t^2 + 75t + 12.When does the spider land on the ground? ___ seconds (answer to 1 decimal place)
So I thought the answer would be 0.2 because parabolas are symmetric but my online assignment says it's not. Please help!
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