7-9

Use the given point on the terminal side of angle O to find the value of the trigonometric function indicated. 7) sec 0 Find the amplitude, the period in radians, the phase shift in radians, the vertical shift, and the transformations required to obtain the graph starting with a basic trig function. Then sketch the graph using radians. 8) y = 2 +4tan 20 - ") Find the amplitude, the period in degrees, the phase shift in degrees, the vertical shift, and the transformations required to obtain the graph starting with a basic trig function. Then sketch the graph using degrees. 9) y = 3sin (30 - 240) + 1 -2