1. using 2 dots that are on the blue line (0,72) and (6,69)
find the slope:
slope = change in Y over change in x = 69 - 72 / 6-0 = -3 / 6 = -1/2
equation would be y = -1/2x + 72
2. y = -1/2x+72 = -1/2(30) +72 = -15 +72 = 57 beats per minute
3. replaced x in the equation with 30 to find the beats per minute for exercising 30 minutes
Isolate the variable Y by multiplying 1.5 on both sides.


Hope this helps.
頑張って!
The answer is < because 7.1983 * 10^1 =71.983
Answer:
$6
Step-by-step explanation:
Answer:
m a t h
Step-by-step explanation:
i am in middle school so i dont know