Assume the price of product Y (the quantity of which is plotted on the vertical axis) is initially $15 and the price of X (the quantity of which is plotted on the horizontal axis) is initially $3. Assume money income is initially $60. If the prices of Y and X now increase to $30 and $6, respectively, and money income increases to $120, then the budget line will Multiple Choice shift rightward and become steeper. shift rightward and become flatter. shift rightward, but its slope will not change. be unchanged.

Aproperty title search firm is contemplating using online software to increase its search productivity. currently an average of 40 minutes is needed to do a title search. the researcher cost is $2 per minute. clients are charged a fee of $400. company a's software would reduce the average search time by 10 minutes, at a cost of $3.50 per search. company b's software would reduce the average search time by 12 minutes at a cost of $3.60 per search. which option would have the higher productivity in terms of revenue per dollar of input?