Answer: Graph (B) is correct. Image is attached below.
Step-by-step explanation: We are given to select the graph that has a slope of 1.
We know that
the slope of a graphed line passing through the points (a, b) and (c, d) is given by
For graph (A) :
the line passes through the points (0, 0) and (4, 1). So, the slope of the graphed line will be
So, this option is incorrect.
For graph B :
the line passes through the points (0, 0) and (2, 2). So, the slope of the graphed line will be
So, this option is correct.
For graph C :
the line passes through the points (0, 0) and (2, 1). So, the slope of the graphed line will be
So, this option is incorrect.
For graph D :
the line passes through the points (0, 0) and (20, 5). So, the slope of the graphed line will be
So, this option is incorrect.
Thus, the graph (B), the top second one is the correct option. Its image ia attached below.