Quadratic function 2

Which of the points belong function f:y= 2x2- 3x + 1 :

A(-2, 15)
B (3,10)
C (1,4)

Result

A=



B=



C=




Solution:

A:2⋅(−2)2−3⋅(−2)+1=15 B:2⋅32−3⋅(3)+1=10 C:2⋅12−3⋅(1)+1=0≠4 A:2 \cdot (-2)^{ 2 }-3 \cdot (-2)+1 = 15 \ \\ B: 2 \cdot 3^{ 2 }-3 \cdot (3)+1=10 \ \\ C: 2 \cdot 1^{ 2 }-3 \cdot (1)+1 = 0 \neq 4 \ \\

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