Complete the following table:
 

Problem	slope, m	y-intercept, b,  when x = 0	Formula,  (y=mx+b)
Problem 1. From the table below: Determine if the function is linear and (a) Write N as a function of W W 15 20 25 30 N 50 45 40 35	-1	65	N=-W+65
Problem 2 (b) W as a function of N	-1	65	W=-N+65
Problem 3 - A linear Function with these 2 points (2,  -1) and (10, -8)	-7/8	3/4	y=-7/8x+3/4
Problem 4. The linear depreciation of the value, V from $25,000 to $15,000 in 7 years	-1428.57	25000	V=-1428.57t+25000
Problem 5. The apprication of a house from $200,000 in 1986 to $360,000 in 2002.	10000	200000	V=10000t+200000

  Bonus Problem Find the point of intersection of the lines y = 3 - ¼ x and y = 1/x  (5%)
(0.3431, 2.9142)
  2 solutions can you find the other?