Solution
The general form of the n-th term = a + (n-1)d
An = 2 +(n-1)0.5
An = 2 + 0.5n - 0.5
An = 0.5n +1.5
Here the slope is 0.5 and y-intercept is 1.5
Therefore, the line start from y = 1.5 rises 0.5 level because the slope is 0.5
Now look at the graph.
The graph D start from 1.5 and moves at the rate of 0.5
The answer is Graph D.
