Refer to the information provided in Figure 23.9 below to answer the question(s) that follow.


Refer to Figure 23.9. How will equilibrium aggregate expenditure and equilibrium aggregate output change as a result of a decrease in investment by $20 million?
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AE line shifts down, increasing equilibrium output and equilibrium expenditure.
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AE line shifts up, increasing equilibrium output and equilibrium expenditure.
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AE line shifts down, decreasing equilibrium output and equilibrium expenditure.
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AE line shifts down, increasing equilibrium output and decreasing equilibrium expenditure.