Please help me with this microeconomics question:

Draw a supply and a demand curve and label the market equilibrium on the axes with P1 and Q1.

In the same graph, show the effects of an increase in supply and a decreases in demand. Label the new equilibrium values on the axes with P2 and Q2.

Add one more curve to your graph - either for supply or demand demand - sand show that the effect of this simultaneous shift is qualitatively ambiguous in one of the variables.