High School Maths Examples and Questions

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Questions − Plotting Quadratic Graphs 2

Enter the y values below and then plot onto graph paper

1.  For the graph y = 2x2 + 10x + 8 when x is −6, −3 and 0.
    There are also the coordinates (−5, 8), (−4, 0), (−2, −4), (−1, 0) and (1, 20)

2.  For the graph y = 3x2 + 21x + 18 when x = −8, −4 and 0.
    There are also the coordinates (−6, 0) and (−2, −12)

3.  For the graph y = 4x2 + 20x − 24 when x = −6, −2 and 2.
    There are also the coordinates (−4, −40) and (0, −24)

4.  For the graph y = 2x2 + 9x − 56 when x = −8, −2 and 4.
    There are also the coordinates (−6, −38), (−4, −60), (0, −56) and (2, −30)

5.  For the graph y = 5x2 − 20x − 60 when x = −4, 2 and 8.
    There are also the coordinates (−2, 0), (0, −60), (4, −60) and (6, 0)

6.  For the graph y = 3x2 − 21x + 36 when x = 0, 3 and 6.
    There are also the coordinates (1, 18), (2, 6), (4, 0), (5, 6) and (7, 36)

7.  For the graph y = 3x2 − 40x + 48 when x = 0, 6 and 12.
    There are also the coordinates (2, −20), (4, −64), (8, −80), (10, −52) and (14, 76)




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