Answer: The angle is
and the tangent is 1
Step-by-step explanation:
The angle
at wich the functions sine and cosine are equal is
. Let's prove it:


Hence:

On the other hand, the tangent function is defined as:

Then:



I think it would be 14%
25+14=39 = 14% in change
That would be : y = 2x + 1