Answer:
Step-by-step explanation:
y=mx+b where m=slope and b=y intercept
m=(y2-y1)/(x2-x1)
m=(-2-4)/(2+1)
m=-2 so far we have the slope
y=-2x+b, using point (2,-2) we can solve for b, the y intercept
-2=-2(2)+b
-2=-4+b
2=b so we have our line
y=-2x+2, slope is -2 and y intercept is 2
300 is the original amount and 0.5 is the rate (a percent) which is deacying because it is less than 1
Your answer is 100ft. This is because to find the radius when you already know the diameter you have to divide the diameter by 2.
7 and 79/100 miles that is the answer
