(4,1)
(4,-2)
(1,4)
(1,-2)
Correct answer is C
f(x)=5x2−4x+3
f′(x)=10x−4=6⟹10x=10;x=1
When x = 1, f(x) = y = 5(12)−4(1)+3=4
The coordinates are (1,4)
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