2. Find the interpolating polynomial y = ar²+bx+c that passes through all three of the

following data points: (1, -5), (0, 2), and (2, -10).

3. A chemist has one solution that is 20% hydrochloric acid and another solution that is

70% hydrochloric acid. How many ounces of each solution should they use to produce

20 ounces of 50% hydrochloric acid solution?