With a downsloping demand curve and an upsloping supply curve for a product, an increase in consumer income will

increase equilibrium price and quantity if the product is a normal good.

Explanation:

In the case of normal good there is a direct relationship between the income and the quantity demanded. That means if the income rises so the quantity demanded would also rised and if the income declines so the quantity demanded also fall

So as per the given situation if there is a rise in income so the equilibrium price and quantity would increased in the case when the product is a normal good

a manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. at the end of december, the company wishes to forecast sales for january. the estimate of trend through november has been 200 additional boards sold per month. average sales have been around 1000 units per month. the demand for december was 1100 units. the company uses α = 0.20 and β = 0.10. make a forecast including trend for the month of january.