00:02
To start this problem, we're going to write a function which represents the total cost, and to do that, we want to add the variable cost to the fixed cost, and we're letting x equal the number of units and c equaling the cost.
00:15
So, for the variable cost, we're told that it is $12 .30 per unit, we need to multiply that by the number of units, so that would be $12 .30 times x.
00:26
And for the fixed cost, we're told it's $98 ,000.
00:29
So that represents the cost.
00:36
Now we'll move on to part b.
00:40
Next, we're going to look at revenue, and that would be the money brought in from sales, and we'll use a capital r for revenue.
00:46
And so we're told in the problem that the item sells for $17 .98, so we'll multiply $17 .98 times the number of units...
