Graphing Quadratic Equations in Two Variables · Exercise 42
Solve. Round answers to the nearest tenth.
A stone is thrown vertically upward from a platform that is 20 feet high at a rate of 160 ft/sec. Use the quadratic equation to find how long it will take the stone to reach its maximum height, and then find the maximum height.
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Elementary Algebra 2e · §10.5 Graphing Quadratic Equations in Two Variables · Exercise 42
No hints for this one.
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