Peter's class launches a helium balloon for an experiment. The coordinate grid shows the height of the balloon as it rises in he

Question

3 years ago

6

ight. At what rate does the balloon rise in height?
A. 40 feet per second
B. 100 feet per second
C. 30 feet per second
D. 50 feet per second

1 answer:

n200080 [17] · Answer 1 · 2022-10-13T09:19:55+03:00

8 0

Answer:

C. 30 feet per second

Step-by-step explanation:

Looking at the graph, after 5 seconds, the balloon reaches 150 feet

at 10 seconds, it reaches 300 feet

Slope m = (y2-y1)/(x2-x1) = (300 - 150)/(10 - 5) = 150/5 = 30

y = mx + b

300 = 30(10) + b

300 = 300 + b

b = 0

then y = 30x