Answer:
There is no short answer.
Step-by-step explanation:
To find to intervals which f(x) increases or decreases, we first need to find it's derivative.

The function is increasing when it's value is > 0 and decreasing when it's value is < 0.
If we take a look at this graph, cosx+sinx is positive when they are both positive or when cosx is greater then sinx on the negative part.
I hope this answer helps.
Answer:
2.57 or 2.5703939893007399
Hope this helped have a good one! :)
Answer:
reflection across y
Step-by-step explanation:
Use the slope formula<span> to find the slope. Use the slope (that you found in the step above) and one of the </span>points<span> to find the y-intercept. (Using y = mx+b, substitute x, y, and the slope (m) and </span>solve<span> the</span>equation<span> for b.) </span>Write<span> the </span>equation<span> in slope intercept</span>form<span> using the slope and y-intercept</span>