8.1-8.3
A,B,C,D variables
Mystery
BONUS
100
Convert 1.6 radians into degrees. Round to the nearest degree.
92 degrees
100
Determine the period of the function and the distance by which its graph has been horizontally translated.
y = 4 sin 6 (x-60 degrees) -3
Period = 360 degrees/6 = 60 degrees
c = 60 degrees. Translated 60 degrees to the right.
100
What is the range of the function y=6 sin 3 (x-20 degrees)+ 4
max: d+a = 4 + 6 = 10
min:d-a = 6-6 = -2
Range: y is bigger or equal to -2 and smaller or equal to 10
100
Match the correct equation to this graph
a) y=3 sin 2(x- 120)+2
b) y = 3 cos 2(x-90)+2
c) y = 2 sin (x-120)+2
d) y = 2 sin (x-120) +3
a) y=3 sin 2(x- 120)+2
200
Convert 400 degrees into radians. Also, sketch an angle of 400 degrees!
20pi/9
200
Find parameters a and d from this graph.
a = 2
d = 1
200
a) Period = 360/b = 2pi/8.4 = 0.75 seconds
b) time it takes to complete one complete cycle of the hearts pumping action. The time between heartbeats!
300
For the y=cos x function, what is the period, y-intercept, amplitude and max/min?
360 degrees or 2pi, y-intercept of 1, amplitude of 1, max at 1 and min at -1.
300
Find parameters b and c from this sin graph
b= 2
c= 120 degrees
300
Describe this graph by determining its range, equation of midline, amplitude and period.
Range: y is bigger or equal to -4 and smaller or equal to 2.
Midline: y=-1
Amplitude: 3
Period: 5 radians