The function that can be used to describe the flight of the model rocket is g(t) = -16t² + 80t
An equation is an expression used to show the relationship between two or more variables and numbers.
Given the equation:
g(t) = -16t² + vt + h
Where g is the height of the object above the ground at t seconds and v is the initial velocity with h as the initial height.
Since the initial velocity of 80 feet per second, v = 80 and launched from ground level, h = 0, hence:
g(t) = -16t² + 80t + 0 = -16t² + 80t
The function that can be used to describe the flight of the model rocket is g(t) = -16t² + 80t
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