Question: sinusoidal function 6. A sinusoidal graph has a maximum at the point (-40, 3) and a midline of y = -12. Determine the amplitude of

sinusoidal function

6. A sinusoidal graph has a maximum at the point (-40, 3) and a midline of y = -12. Determine the amplitude of the graph. 7. Laurie's position on a Ferris wheel can be modelled by the function h(r) = 15.4 sin (2.3/ - 1.4) + 17.2 where h(t) represents her height in metres and / represents the time in minutes, a) How much higher, to the nearest tenth of a metre, is she after 0.5 min than at the start of the ride? b) For how many minutes in one turn of the Ferris wheel is Laurie higher than 10 m

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