I would but my teacher has a ad blocker on and I cant access the attachment :P
Median is the middle number so it would be 250
That graph would be non-linear
Answer:
We have the equation

we leave the terms with x on the left side of the equation and the independent terms on the right side.

resolving for x we have that

Since we need that the equation doesn't have solution, then it is necessary that the denominator of x be 0 and this occur when 
Then, for
the equation hasn't solution