Here is your solution,
(-5)^2 - √25 - 4 x (-14)/2
25 - √ 25 + 56/2
25 - √81/2
(25 - 9)/2 = 16/2 = 8
or
25 + √25 +56/2
25 + √81/2
(25 + 9)/2 = 34/2 = 17
So m = 8,17
The price of the house would need to increase by 19.05% in order to become its original price of $250,000. The price would become $250,005, which the least amount I have gotten to while attempting your question.
If this has helped you, consider my answer to become the Brainliest!
Slope = -2/1
work is provided in the image attached.