A swing has a maximum height of 2 m and a minimum height of 0.5 m and it takes 3 seconds to get from the maximum height to the minimum height. Approximate the instantaneous rate of change 1 second into the fall using the difference quotient when h is 0.01.
a) -0.6823
b) -1.0856
c) -1.3650
d) -0.1973
I chose answer b.
Also:
If a point on the Cartesian plane lies at (4,2) what is the angle in radians made with the line containing the point and the origin and the negative y-axis?
a) 2.034
b)1.047
c) 0.523
d) 0.463
I chose answer a.
If my answers are correct, you don't need to show your work. Just say it's right. Thanks so much for your help in advance.