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f(-1) = -a+b = 4
f(2) = 2a+b = 1
Kurangi persamaan atas :
-3a = 3
a = -1
b = 3
a^2+b^2 = 1+9 = 10
f(-1) = -1a + b = 4 nilai a² + b² = (-1)² + (3)² = 1+9 = 10
f(2) = 2a + b =1
__________ -
-3a = 3
a = -1
f(2) = 2a + b = 1
= 2 x (-1) + b = 1
= -2 + b = 1
b = 1+2 = 3