Answer:
the last one. .D.
Step-by-step explanation:
this is correct because if you look at the line that goes up and down y-intercept you see that the line draw touches the dash that means -3. so the last awnser is correct.
Hope this helps
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
Answer:
45
Step-by-step explanation:
Answer:
- x/10 = 9
multiply by 10 on both sides
-x = 90
divided by -1 on both sides
x = -90
