Jackson takes a marker and draws an arrow at the top of his yo-yo, pointing it toward the string when it is all wound up. The location of the arrow on the yo-yo can be represented by a cosine function.
The function that represents the location of the arrow is f(x)=2cos(8πx)+2, where x represents time in seconds, and f(x) represents the vertical distance in inches that the arrow is from the lowest point on the yo-yo.
What is the width of the yo-yo?
8 inches
4 inches
8π inches
2 inches
1 answer
the width of the yoyo is twice the amplitude, or 4 inches
1 answer