Rotate by angle α = 90°, around a center point (0; 0)
No the 4 in 400,00 is a 400,000 in value
The value is 3 because x=3 right there! it's not even a question, just an answer!
It is 27, hope this helps!
The slopes are the same.
Example: y=2x+5 & y=2x+7