00:01
So if x is the number of chairs produced and c is the cost, so 100 chairs are being produced at $2 ,200 and 300 chairs are being produced at $4 ,800.
00:13
So in part a, let the linear relationship between c and x b, c is equal to ax plus b.
00:20
Putting these values in this equation, 2 ,200 is equal to 100 x plus 100a plus b and 4800 is equal to 300a plus b.
00:35
Let this be equation number 1, let this be question number 2.
00:39
Now we subtract equation 2 from equation number 1.
00:43
So b and b will get cancelled.
00:45
We will get 2 ,600 is equal to 200a.
00:50
Implies a is equal to 2 ,600 divided by 200 that means a is equal to 13...