00:01
All right, so let's first find our slope.
00:03
So we're gonna have m equal to, we have 140, 140, price was 140, and this would be minus 100 when the price was $100 each.
00:17
And then when price was 140, we had 105 games sold, and then 175 sold when it was 100.
00:26
So this is gonna give us 40 over negative 70.
00:38
So that's negative four over seven.
00:40
So to find our function, we'll have p of x minus, now let's choose one of them, so let's say price be 100, equal to our m, which is negative four over seven times x, and that's minus, when it was 100, we had 175.
01:01
So our p of x is gonna be equal to negative four over seven x.
01:08
So now if we have negative four over seven times 175, and that's over seven, and then we're gonna add 100 to that, that would give us just 200.
01:25
So that is our price equation...