Remark
So far what you have is the y intercept which according the graph, is (0,1)
The general equation is y = mx + b
If you put the following point (0,1) into the general line formula, you will get b
Givens
y = 1
x = 0
Solve
Substitute the givens into the general line
1 = m*0 + b The m is no longer there.
b = 1 The y intercept is 1
So far what you have is
y = mx + 1
The problem tells you that the slope (m) = 1/5
The equation is y = (1/5)x + 1
None of the answers are correct. There is no x anywhere that is right. If x was present, the answer would be C.