Answer:
Step-by-step explanation:
a). Since starting point of the line is (0, 50),
  Therefore, I started with the saving of $50.
b). Since endpoint of the segment is (5, 175),
  Money with me after 5 weeks will be $175.
c). Let the equation of the line given in the graph is,
  y - y' = m(x - x')
  Where (x', y') is a point lying on the graph.
  And 'm' is the slope of the line.
  Slope of the line = [tex]\frac{175-50}{5-0}[/tex]
               m = [tex]\frac{125}{5}[/tex]
               m = 25
   Since, the line passes through (0, 50),
   y - 50 = 25(x - 0)
   y = 25x + 50
   y = 25x + 50
   For x = 6,
   y = 25×6 + 50 = 200
   For x = 7,
   y = 25×7 + 50 = 225
   For x = 8,
   y = 25×8 + 50 =250
d). For x = 10 weeks,
  y = 25×10 + 50 = $300
e). For x = 15 weeks
   y = 25×15 + 50 = $425
f). For x = 50 weeks,
   y = 25×50 + 50 = $1300
g). Equation of the line is,
   y = 25x + 50
