SAT Practice Test #1 Math Calculator #15

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Transcript

What does the C intercept represent in the graph? All right, the graph. So it says here, the graph above displays the total cost. See, in dollars of renting a boat for each hour. All right, so this graph should show us how much renting the boat costs for each hour that I use. All right, so for one hour, it's going to cost me $8, right, I'm right here.

So it's $8 for one hour, at two hours, I just moved up, up, up, up, up and to the left, then it's gonna cost me $11, so on and so forth. Now they're saying what is the C intercept? What does that represent? Well, our C intercept right here, which isn't just the same thing as saying your y intercept, okay, that is whenever your graph or in this case the line touches the intercept. So where does this graph touch the sea intercept? Well, it touches it right here at five The Intercept, remember is when your x value this case, it happens to be time, or H is zero.

So this means that before I even set foot into the boat before I even use it for a single second, I'm already charged $5 this is just the amount of money that I need to pay upfront for up to the guy that will rent me his boat, or who knows who's gonna rent me his boat, but whoever wants that money bill these $5 up front and then for every hour, I'm having fun with it, I'm going to need to pay according to this graph. So the five is going to represent my initial cost of renting the boat. This is initial initial usually means at an x value of zero in this case, h being zero.

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