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avatar+1832 

In this problem, part (b), why the answer is $100,000 + $100 x ! 

this 100,000 comes from were ! 

 

 

 

 

 Jun 25, 2016

Best Answer 

 #3
avatar+121064 
+5

We have these points on the total cost graph (0, 100000)   and (1000, 200000).....the slope of this line =

 

[200000 - 100000] / [ 1000 - 0]  =    100000/1000   = 100

 

So....the equation  of the line can be found using the point-slope form :

 

y - 100000  = 100[x - 0]      simplify

 

y = 100x + 1000000

 

 

cool cool cool

 Jun 25, 2016
 #1
avatar+32762 
+5

The y-axis is not in dollars, it is in 10^4 dollars. Look at the x10^4 in brackets after the word Dollars.

 

So the y- intercept  isn't $10 it's $10*10^4 or $100000

 Jun 25, 2016
 #2
avatar+1832 
0

Yes Alan, I know this, but the answer must be 100x , how did he find the answer 100000 + 100x 

 Jun 25, 2016
 #3
avatar+121064 
+5
Best Answer

We have these points on the total cost graph (0, 100000)   and (1000, 200000).....the slope of this line =

 

[200000 - 100000] / [ 1000 - 0]  =    100000/1000   = 100

 

So....the equation  of the line can be found using the point-slope form :

 

y - 100000  = 100[x - 0]      simplify

 

y = 100x + 1000000

 

 

cool cool cool

CPhill Jun 25, 2016
 #4
avatar+1832 
+5

Thank you  CPhill

 Jun 27, 2016

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