Why+did+you+give+us+a+wheel+height?

= **Plotting Wheel Height** = **Create a graph that shows the height above ground for the valve on a mountain bike tire as the tire spins across the ground. Assume that the tire is on a 26" rim, i.e. the valve is 12 inches from the center of the wheel. Create an appropriate trigonometric model for your graph and explain the competent of your model.**

Connections - Transformations of graphs - Sine graph - Properties of sine - Amplitude = 12 because the radius from the center of the wheel to the valve is 12 inches - Period =1/12 because 12 is the radius from the center of the wheel to the valve - The graph shifted up one because the valve is always one inch off the ground because of the tire -the horizontal shift was our variable