00:01
This problem below gives us the data for two models of a certain car and we assume gases in dollars per gallon.
00:06
So hybrid costs $22 ,800 plus 11 cents per mile and a standard cost $19 ,300 for 15 cents per mile.
00:14
So we want to write a function to represent the cost for each and then determine the break -even miles for these two cars.
00:20
So a hybrid starts off at 22 ,800.
00:26
And we also have to add 11 cents for every mile.
00:30
We'll say mile is x.
00:32
So 22 ,800 plus 1 .11x for the standard, its initial cost is $19 ,300.
00:42
And we have to add 15 cents for every mile there.
00:46
So those are our two functions, and if we want to figure out where they break even, we're going to set them equal and solve.
00:52
So we'll have the 22 ,800 plus 11 cents times every mile...