Verify your results in Exercises 19–22 by using a graphing utility to graph the resulting parabola. Trace along the curve and convince yourself that the three points given in the exercise lie on the parabola.

Data from exercise 19-22

19.

20.

21.

22.

Transcribed Image Text:

Substituting 2 for a, -1 for b, and 3 for c in the quadratic equation y = ax² +bx+c gives y = 2x²-x+3.