A graph titled Monthly Sales and Advertising Costs has Advertising Costs (1,000 dollars) on the x-axis and sales (1,000 dollars)
on the y-axis. A line goes through points (6.4, 117) and (6.6, 120). The scatterplot and trend line show a positive correlation between advertising costs and sales.
Using the points (6.4, 117) and (6.6, 120), what is the slope of the trend line?
–15
–12
12
15
The kid above me thought they were smart using the old copy and paste method, and they did it from a completely different question. As you can tell, 21 isn't even an option, so 15 is the answer.
Diameter of the semicircle: D=6 yd*(3 ft / 1yd)→D=18 ft Circumference of the semicircle: C=pi*D/2 C=pi(18 ft)/2 C=9pi ft pi=3.14 C=9(3.14) ft C=28.26 ft
