Calgary Board of Education CBe-Learn Math 30-2 Assignment #3 - Sinusoidal Functions Name 14 Show work for full marks. 1. The graph represents the daily maximum angle of elevation of the sun above the horizon for Nordberg, AB. Time (day of year) is on the x-axis and angle of inclination (degrees) is on the y-axis. [2] a) If the angle of elevation is modeled by a sinusoidal equation of the form y = a sin (bx + c) + d, use the graph to determine the following (show any work necessary). d = 40 35 b 30 25 C Yes/No (circle one) 10 100 150 200 350 b) What are the maximum and minimum elevations of the sun? [1] c) Approximately how many days without sunlight are there in Nordberg? [1]