Question

could anyone help me with these questions ?

Answer 1

1. find the period and the amplitude of the periodic function

A. 4;2
B. -4;4
C. 3;-4
D. -4;2

2. which of the following angles is not conterminal with the other three

A. 591
B. 231
C. 51
D. -129

Answer 2

you gotta do it with your eyeballs

Answer 3

the period is the length of the interval over which the function completes its pattern
look at where it is zero, then goes down to -4, back up to 0, down to -1 and back up to 0
how long is that interval?

Answer 4

so that means it would be -4;2 right because it goes down to -4 and then goes up to 2 ?

Answer 5

close, but the period is a positive number, it is a length