00:02
So i have two different machines that i can buy.
00:05
One of them is going to cost me $1 ,200 to set up and half a cent per unit to produce.
00:11
The other one is going to cost me more to set up, $1 ,500, but it's less per unit.
00:18
It's like one -tenth of a cent.
00:21
So i need to figure out which one is the better deal, and more importantly, where their cost is the same.
00:28
So how many units am i going to have to make for that break -even point between the two machines? so my variable is actually going to be my number of units.
00:41
And now i need to go ahead and write an expression for the cost for each machine.
00:47
So the first machine is 1 ,200 plus 0 .00 per unit cost.
00:58
The second machine is 1 ,500 plus 0 .0015 per unit.
01:08
So the break -even point happens when those two costs are equal to each other.
01:18
So let's go ahead and set these equal to each other, 015x.
01:27
And then i'm going to go ahead and solve for x...