(2, 2 ), (- 2, 18 ), (0, 10 )
substitute the x-coordinate of each point into f(x) and if the value is equal to the y-coordinate then it is on the graph of f(x)
(- 18, 2 ) ⇒ y = 10 + 72= 82 ≠ 2
(- 10, 0 ) ⇔ y = 10 + 40 = 50 ≠ 0
(- 2, - 2 )⇒ y = 10 + 8 = 18 ≠ 2
(18, - 2 ) ⇒ y = 10 - 72 = - 62 ≠ - 2
(2, 2 ) ⇒ y = 10 - 8 = 2 ⇒ (2, 2 ) is on graph
(- 2, 18 ) ⇒ y = 10 + 8 = 18 ⇒ (- 2, 18 ) is on graph
(0, 10 )⇒ y = 10 - 0 = 10 ⇒ (0, 10 ) is on graph
(2, - 18 ) ⇒ y = 10 - 8 ≠ - 18
