00:01
Okay, so here first you want to find the equilibrium value of real gdp.
00:05
So that's where the curve y is equal to ae.
00:11
So y is represented by the 45 degrees line.
00:16
And so the intersection point is 14 and 14.
00:22
So that's the equilibrium gdp, excuse me, just 14, not the paired 14.
00:31
In b, you want to find the mpc.
00:35
So to find the mpc, we're going to write ae equals a plus by.
00:42
So here b is the mpc.
00:44
So you need to first find the slope of the equation.
00:47
So we can use two points.
00:53
Slope b is equal to the change in a .e.
00:59
So 15 .5 minus 12 .5...