Final answer:
The question seeks to identify an error in graphing the equation y = 3x + 1. Without seeing the graph, it's impossible to specify Kelsey's mistake. However, potential errors usually involve the y-intercept or slope.
Step-by-step explanation:
The question relates to understanding the correct graphing of linear equations. Kelsey graphed the equation y = 3x + 1, which has a slope (rise over run) of 3 and a y-intercept of 1. However, without the graph provided, it is impossible to determine Kelsey's error. Nonetheless, typically, when graphing equations like this, common mistakes may include plotting the incorrect y-intercept, misinterpreting the slope, or inaccurately drawing the slope between points. Correctly, for every increase of 1 on the x-axis, the value of y should increase by 3, starting at the point (0,1) on the y-axis.