00:01
Okay, so to answer this question, you need to first find the demand equation and supply equation.
00:08
So we can take two points for the demand equation at 0, 7, and also at here is 3, 6, 3 and 6.
00:21
So let's calculate the slope here.
00:27
Slope is equal to 6 minus 7 over 3 minus 0, or negative.
00:32
1 over 3.
00:34
And y intercept is 7 so that we have price demand equals negative 1 over 3 times quantity plus 7.
00:45
So that's the demand equation.
00:49
And for supply equation, we can take a .10 and 5 .5 here and also 13 and 6 .5.
01:05
So the slope 10, 5 .5, and 13 and 6 .5.
01:18
The slope here is equal to 6 .5 minus 5 .5 over 13 minus 10 or 1 over 3.
01:30
And then so that we have ps equals 1 over 3 times quantity plus some intercept a.
01:38
And so a equals ps minus 1 over 3 times q now we can we can substitute one of those points 5 .5 minus 1 over 3 times 10 you get 2 .167 approximately so price equation for supply is 1 over 3 q plus 2 .167 okay, now first thing you do is to find the equilibrium price and quantity.
02:17
So you need to equate the supply and demand equation...