You would do 21 divided by 3 and get 7.
The answer is 7 kids are in the line.
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Answer:
number 10
dy/dx =(dy/dt).(dt/dx)
now find
dy/dt=4t-1. , dt/dx=1
so : dy/dx=(4t-1).(1)
dy/dx= 4t-1 ,we have x=t-3-----> t=x+3
subtitute at t
dy/dx= 4(x+3)-1=4x+12-1= 4x+11
Start at (0, 135) and work your way down 15 and over one each time. Your next point would be (1, 120)
the domain is all the real numbers, or (-infinite <x<infinite)
the range is y>=-4
axis of symetry is x= -1
vertex is (-1,-4)
the parabola opens upwards
x intercepts (-3,0) and (1,0)
y intercepts (0,-3)
They are both the same. There are 60 seconds in one minute, so 60*3 is 180. Since 180=180, they are equal.
:)
