book Maths Puzzle Numerical Ability

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book Other Question

Sarah is visiting a friend about two miles away from her house. She sees a hot-air balloon directly above her house. Sara estimates that the angle of elevation formed by the hot-air balloon is about fifteen degrees. About how high is the hot-air balloon? Given f(x)=2(x+2)^2-1 what is the domain, range, vertex, y intercept, and axis of symmetry (sketch the Graph).