Consider the parametric equations
x = 5t cos 40°
y = 5t sin 40°
a. Make a graph with window 0 ( x( 5, -2 (y( 5, and 0 ( t( 1.
b. Describe the graph and the measure of the angle between the graph and the x-axis.
c. What is the relationship between this angle and the parametric equations?
d. What is the effect of the 5 in each equation? Change the 5 to a 1 in the first equation. What happens? What happens when you change 5 to 1 in both equations?