Question

Which point is not on the graph of the function y = x - 1?

(9, 8)
(8, 7)
(5, 6)
(4, 3)

Answer 1

(5,6)

Explanation:

All other points are on the line besides (5,6).

Answer 2

(5, 6)

Explanation:

y = x - 1

(9, 8)

y = x - 1

8 = 9 -1

8 = 8 (this point is on the graph)

(8, 7)

y = x - 1

7 = 8 - 1

7 = 7 (this point is on the graph)

(5, 6)

y = x - 1

6 = 5 - 1

6 = 4 (this point is not one the graph

(4,3)

y = x - 1

3 = 4 - 1

3 = 3 (this point is on the graph

Hope this helps!