Determine which graph represents this system of equations: y = -x2 + x + 5 y = -x + 2. Graph 1 shows the system of equations. The points of intersections are (3,-1) and ( , ).

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.