_ __. _. _ ____.___,____ 1) (20 Points) d} Referring to the Figure above, write the equation for aggregate expenditure AEl by explaining how to nd the intemept and slope. Suppose AE 1, AE2 and AE3 are parallel. Calculate the value of Point A & B? Show your work. Assuming the economy's aggregate expenditure line is A51, calculate how much increase would be in aggregate equilibrium output if there is a $10 million increase in planned investment. Show your work, Now suppose the economy's aggregate expenditure line is 21522. Calculate how much increase would be in aggregate equilibrium output if there is a $10 million increase in planned investment. Show your work