Question

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Answer 1

a= -4 b= -1 c=4

Answer 2

A = - 4 , B = - 1 , C = 4

Explanation:

to find the values of A , B and C substitute the values of x above them in the table into the equation

x = - 3

y = (- 3)² + 4(- 3) - 1 = 9 - 12 - 1 = 9 - 13 = - 4 ⇒ A = - 4

x = 0

y = 0² + 4(0) - 1 = 0 + 0 - 1 = - 1 ⇒ B = - 1

x = 1

y = 1² + 4(1) - 1 = 1 + 4 - 1 = 5 - 1 = 4 ⇒ C = 4