Extend Thinking: Find the x and y intercepts. (Use 2.1 & 2.2 notes to solve.) 7) y = x2 + 5x + 6
8) y = x2 – 3x + 2

Factor the expression using gcf 9b+45

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

A50% increase followed by 33 1/2% decrease