How do I indicate this on a graph please and thank you

car Industry True, income elasticity of demand measures the percentage change in the quantity demanded resulting from a percent increase in income. In this case income elasticity of demand for automobiles can help to find out the how effective will be cut in personal income tax will be for the car industry. Automobiles are expensive goods that require high disposable income to purchase. The government can use the income elasticity of demand for automobiles to find out what set quantity of automobiles are demanded by public at each income level. Governments then can decide how much income earned by the public should increase (ie, cut in personal tax) so that quantity demanded of automobiles reaches a set desired demand level