Find the solution(s) to these problems either graphically or algebraically: solutions
 

Problem 1. Find the point of intersection of the lines y = 3 - ¼ x and y = -4 + ¼ x.

Problem 2. From the table below: Determine if the function is linear and  (a) Write N as a function of W and (b) W as a function of N   W 15 20 25 30 N 50 45 40 35

Problem 3. Using either a graphics or algebraic approach solve the following problem:

The Administrative Expense (AE) for a small business is falling each year linearly
from $5,000 at a rate of $3,000 per year and the Total Business Operating Cost (OC)
is falling inversely proportional to time in years accordingly to the following formula Operating Cost,

C, $(1,000) =  , where t is in years, and cost is in $1,000.
When will AE = OC?