Answer: the answer is below
Explanation:
a) the central bank raises interest rate and slow dow economy when inflation raises
b) note that a is an x-intercept. Under a steeper AD curve, a shock to a has a greater effect on output and inflation.
c) Under a steeper AD curve, a shock to o creates a smaller swing in output, but a bigger swing in inflation.
d) A Fed that doesnt care much about inflation causes AD to be steeper. Also if investment responds only weakly to shifts in interest rates, or if the consumption and investment multipliers get smaller, then AD gets steeper