Answer:
0
Step-by-step explanation:
This is like saying 15-15.
Answer:

Step-by-step explanation:

Points: (12, 9)
Slope (m⊥): 





First you get a graphing calculator & enter the equation into y = then hit graph . then hit graph & y= to get the table find where y is 0 and those will be you answers
(-0.583, 0) (8.583, 0)