1
The residual for a particular point in a regression is negative if the estimated or fitted value at that point is greater than the observed value.
-1.5
A residual is defined in the context of some "expected" value. There is no information in the question regarding expected values.
Residual point
3
ItS 2
point 5 means 0.5 which is a 1/2
No. In an ordered pair for a point in the xy-plane the first number is the x-coordinate and the second is the y-coordinate. (2, 5) is the point with an x-coordinate of 2 and a y-coordinate of 5; (5, 2) is the point with an x-coordinate of 5 and a y-coordinate of 2. Only if the x- and y- coordinates are equal are the points the same point. However, the point (5, 2) is the reflection of the point (2, 5) in the line y = x.
If you mean: y-2 = 5(x-6) then the point is (6, 2) and the slope is 5
If you mean: y-2 = 5(x-6) then the point is (6, 2) and the slope is 5
Point 5 = 0.5 or 1/2 or 50%