clearly the center line is at y = 140 so start with
y = 140 + a sin(bx)
The period is 360°, so b=1
the amplitude is (200-80)/2 = 60
y = 140 - 60sinx
Create a sine equation for the height of a point as shown below.
Rotation Height
0° 140.0
30° 110.0
60° 88.0
90° 80.0
120° 88.0
150° 110.0
180° 140.0
210° 170.0
240° 192.0
270° 200.0
300° 192.0
330° 170.0
360° 140.0
1 answer
1 answer