Answer:
B
Explanation:
A line graph or linear function is where points in a straight line are graphed on the coordinate plane. The slope if the rate of change between points by finding the vertical distance over the horizontal distance.
Between x = 0 and x = 2, it rises 4 units and runs 2 units. This is 4/2 = 2. It simplifies to 2.
Between x = 2 and x = 4, it rises 4 units and runs 2 units. This is 4/2 = 2. It simplifies to 2.
They are the same. It isn't possible to have different slopes of a line on the same line. B is the solution.