Answer:
The correct option is C.
Step-by-step explanation:
In a triangle, then sum of two smaller sides is greater than the length of third greatest side.
Let, in a triangle ABC, If the length of sides are
, then

In option A,

Therefore option A is incorrect.
In option B,

Therefore option B is incorrect.
In option C,

Therefore option C is correct.
In option D,

Therefore option D is incorrect.
Answer:
y = 2x + b
I dont know what b is but the slope is 2 I think
Here's a diagram showing how to combine angles LDA (in red) and angle ADE (in blue). Hopefully it becomes a bit clearer why these two angles add up to line segment LE. Erase the shared segment DA if it helps show LE better.
See attached image below.