1a and 1b question what is the quadrant function

a). Function is not a quadratic function

b). Quadratic function.

Step-by-step explanation:

1.a). x        y         Ist difference     IInd difference

     -2      -1                 -                             -

     -1        0           0 - (-1) = 1                    -

      0       4            4 - 0 = 4               = 4 - 1 = 3

      1        9            9 - 4 = 5               = 5 - 4 = 1

      2       15          15 - 9 = 6             = 6 - 5 = 1

Since, 2nd difference , and from the table are not common, function represented by the table is not a quadratic function.

b). -3x²+ x = y - 11

   -3x² + x + 11 = y

    y = -3x² + x + 11

Since, the highest degree term of the given function is of 2nd degree given function is a quadratic function.  

1/4 because there is 4 grades.

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step-by-step explanation: