THINKING COMMUNICATION 23. The function f(x) = sin (x) undergoes a reflection in the x-axis, a vertical stretch by a factor of 3, a horizontal shift 25. Describe the transformations that occur from the original sine curve to produce the curve of 90 degrees to the right, and down eight units. The function goes through one cycle only. Write the resulting [3 marks] equation of the function [3 marks] y = =sin(x +150') +8 24. A trapeze artist hopes to cross a canyon from A to B as shown. Wires and towers are set up in the following 26. Determine whether the term periodic can be used to describe the graph for each situation. If so, state the schematic drawing. [4 marks] period, equation of the axis, and amplitude. [5 marks] B What is the approx. length of AD? Is this Periodic? Period Equation of Axis Amplitude 3) 0.9 km b) 2.1 km c) 1 km d) 1.6 km Metre Stick Motion 27 What is the approx. measure of angle EDA? 1.3 km 1.7 km Distance km) a) 1.4 b) 86.0 c) 55.3 d) 42 What is the measure of angle CDB? E 0.9 km D A student is moving a metre stick back a) 55 b) 63 c) 153* d) 27 and forth with progressively larger movements. iv) What is the length of the wire from A to B? Piston Motion ) 1.82 km b) 1.73 km c) 2.95 km d) 12 km Time bl The motion of a piston on an automated assembly line