(Q7) Determine x so that 2 is the slope of the line passing through P(2,5) and Q(x,3).

Slope of the line passing through P(2,5) and Q(x,3) is 2

Here x1 = 2,  y1 = 5, x2 = x, y2 = 3

Slope of PQ =
y2 - y1
x2 - x1
  = 
-
x -
 = 
-
x -
 = 2

- = 2x -

2x =

x =