Question

Which equation is represented by the intersection of the graphs below?

A. sec x=-1
B. tan x=-1
C. sin x=-1
D. cos x=-1

Answer 1

The other person is correct, it is sinx=-1

Sorry that I am 4 years late answering!

Answer 2

Answer
sinx = -1


Step-by-step explanation
The graph below shown is a sine wave (sine graph).
This is because; sin0 = 0, sin90 = 1, sin 180 = 0, sin270= -1, and sin360= 0. This can be confirmed in the graph shown.
The line shown is the line, y = -1.

The two intersect at sinx = -1