Plot the points (scatter plot?) Find quadratic function that best models: (-4,37) (-3,19) (-2,7) (-1,1) (0,1) (1,7) (2,19) Do I use my calculator? If so, how?
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Originally Posted by kcwillia377 Plot the points (scatter plot?) Find quadratic function that best models: (-4,37) (-3,19) (-2,7) (-1,1) (0,1) (1,7) (2,19) Do I use my calculator? If so, how? As you have the point (0,1) you know it will be Now you can do , and 7 = (1+b)+b , 2b+1 = 7 and so b = 3 Therefore a is 7 = a+3 and so a = 4 Putting all these together we get: 4x^2 + 3x + 1 = 0
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