The line of fit is not a line of best fit because the line A). Is not close enough to the data points. Emily could change the line to better fit the data by B). Decreasing. The y-intercept and C). Increasing.
The line of fit is not a line of best fit because the line is not close enough to the data points.
Emily could change the line to better fit the data by decreasing the y-intercept and increasing the slope of the line.
To make the line closer to the data points, the y-intercept needs to be lowered.
The slope of the line also needs to be increased to make the line more closely match the trend of the data.
Here is a more detailed explanation of each answer choice:
Answer choice A: "Increasing the y-intercept and increasing the slope of the line" would move the line up and to the right, which would make it even further away from the data points.
Answer choice B: "Keeping the y-intercept and increasing the slope of the line" would make the line steeper, but it would still not be close enough to the data points.
Answer choice C: "Decreasing the y-intercept and keeping the slope of the line" would move the line down, but it would still not be close enough to the data points.
Therefore, the best answer is decreasing the y-intercept and increasing the slope of the line.