All of the points in the graph are on the same line.
Find values for a and b.

Answer:
a = 7
b = 5
(5, 5)
(7, 6)
Step-by-step explanation:
y = 0.5x + 3
every time y increases by a point, x increases by 2 points
(1 , 3)
(3 , 4)
(5 , 5)
(7 , 6)
(9 , 7)