Final answer:
The approximate equation of the line of best fit in slope-intercept form is y = -13/10x + 13.
Step-by-step explanation:
The equation of the line of best fit in slope-intercept form can be found by using the formula y = mx + b, where m represents the slope and b represents the y-intercept.
From the provided information, the line joins the ordered pairs (0, 13) and (10, 0). To find the slope, we can use the formula m = (y2 - y1) / (x2 - x1). Substituting the values, we get m = (0 - 13) / (10 - 0) = -13/10.
Since the line intersects the y-axis at the point (0, 13), we can determine the y-intercept b as 13.
Therefore, the approximate equation of this line of best fit in slope-intercept form is y = -13/10x + 13.