Question

Which point in not on the line y=10-2x
(1,10)
(5,0)
(10,-10)

Answer 1

substitute the values of x and y into the equation

(1,10) 10 = 10 - 2(1)
10 = 8 (this is not on the line of equation y = 10 - 2x)

(5,0) 0 = 10 - 2(5)
0 = 0

(10,-10) -10 = 10 - 2(10)
-10 = -10

Answer 2

(5,0) and (10,-10) is on the line and (5,0) is not so the answer is (5,0)