The graph represents the height h of a projectile after t seconds. 3518 Height (in feet) u 8 G 0.5 I.D 1.5 2.0 2.5 Time (in seconds) (a) Explain why h is a function of t. For each value of t there v of h. (b) Approximate the height of the projectile aer 2 seconds and after 1.25 seconds. (Round your answers to the nearest whole number.) mm = :I fro-25) = :I