Question

Which statement is true about the flight of 2 rockets?

Answer 1

The first rocket, g(x), reached its maximum height before the second rocket, h(x).

Explanation:

Each equation is in vertex form, so we can read the vertex of the rocket's path from the equation.

y = a(x -h)^2 +k . . . . . . has vertex (h, k)

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g(x) has vertex (time, max height) = (4, 170).

h(x) has vertex (time, max height) = (5, 170).

The rockets have the same maximum height (170), but the first rocket, g(x), reaches that height in 4 seconds, one second sooner than the second rocket, h(x).

The first rocket, g(x), reached its maximum height before the second rocket, h(x).