Answer:
y=7x-48
Step-by-step explanation:
The equation of a line is y=mx+b where m is the slope and b is the y intercept.
To find the slope use the equation Slope=y2-y1/x2-x1
For this equation is is 8+6/8-6=7
I found the y-intercept using the slope and it = -48.
The y-intercept is the point where the line crosses the y-axis.
A.66
B.11
C.1/66
D.1
The answer is A.
initial volume of balloon =
so intial volume is 113.14 cubic inches
volume after one hour will be 113.14 - 2 = 111.14 inches
new radius
Rate change of radius is
Rate change is 0.7% per hour the radius is decreasing