Questions − Plotting Quadratic Graphs 1

Enter the y values below and then plot onto graph paper

1.  For the graph y = x² + 6x + 8 when x = −8, −4 and 0.
    There are also the coordinates (−6, 8), (−2, 0) and (2, 24)

2.  For the graph y = x² + 9x + 18 when x = −10, −6 and −2.
    There are also the coordinates (−8, 10), (−4, −2) and (0, 18)

3.  For the graph y = x² + x − 56 when x = −10, 0 and 10.
    There are also the coordinates (−5, −36) and (5, −26)

4.  For the graph y = x² + 10x − 24 when x = −15, −5 and 0.
    There are also the coordinates (−10, −24) and (0, −24)

5.  For the graph y = x² − 16x + 60 when x = 2, 8, and 14.
    There are also the coordinates (4, 12), (6, 0), (10, 0) and (12, 12)

6.  For the graph y = x² − 15x + 36 when x = 0, 6 and 12.
    There are also the coordinates (2, 10), (4, −8), (8, −20), (10, −14) and (14, 22)

7.  For the graph y = x² − 8x − 48 when x = −5, 5 and 15.
    There are also the coordinates (0, −48) and (10, −28)