Y=mx+b
m=slope
b=y intercept
alrighty, find the slope
slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
the slope between (8,-1) and (-4,2) is (2-(-1))/(-4-8)=(2+1)/(-12)=3/-12=-1/4
y=(-1/4)x+b
find b
subsitute a point
(8,-1)
x=8 and y=-1
-1=(-1/4)(8)+b
-1=-2+b
1=b
the y intercept is y=1 or the point (0,1)
Answer:
The answer is 2
Step-by-step explanation:
Your answer would be 7m5-3m3-3. hope that helped
27ft³=x tons
1ft³=0.5 tons

Cross multiply
1x=13.5tons
x=13.5tons
So one scoop/load carries 13.5 tons of sand. Lets see how many 120 loads can carry.
13.5tons*120loads=1620 tons of sand
Now lets see how freight cars it would take to hold 1620 tons of sand
1620/40=40.5 freight cars
Since you can't have .5 of a freight car, lets round 40.5 up to 41
Answer=41 freight cars
Answer:
4.71 ft^2
Step-by-step explanation:
to calculate area its pie * diameter with the diameter in this question being 1.5 and when it says to the nearest hundredth it means to the second away from the point