There is no slope the y axis is the same in both
Answer:
4.5
Step-by-step explanation:
0 is the origin.
0-(-4.5)=
0+4.5=4.5
Answer:

Step-by-step explanation:
You have the following function:
(1)
In order to find the zeros of the function you equal to zero the equation (1), and then you solve for θ:

Then, there are infinite zeros for the function of the equation (1), because n has infinite positive integers values.