The equation modelling the height of the diver at time of t seconds is expresed as
f(t) = - 4.9t² + 4t + 10
To find the height at t = 1.5, we would substitute t = 1.5 into the function. We have
f(1.5) = - 4.9(1.5)² + 4(1.5) + 10
f(1.5) = - 11.025 + 6 + 10
f(1.5) = 4.975
Her height at 1.5 seconds after diving off the springboard is 4.975 meters
