Please help me on this problem.

Answer : (8,5)
Given
K(x) = [tex]8-\sqrt[3]{x}[/tex]
Now we plug in each point and check whether it satisfies our equation
(-64,12)
K(-64) = [tex]8-\sqrt[3]{-64}[/tex]= 12 so this point lie on graph
(125,3)
K(125) = [tex]8-\sqrt[3]{125}[/tex]= 3 so this point lie on graph
(343,1)
K(343) = [tex]8-\sqrt[3]{343}[/tex]= 1 so this point lie on graph
(8,5)
K(8) = [tex]8-\sqrt[3]{8}[/tex]= 6 so this point does not lie on graph because we got 6 instead of 5