Lol232323
Lol232323 Lol232323
  • 02-04-2017
  • Mathematics
contestada

What's the rate of change of y=4x+7?

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amelia18
amelia18 amelia18
  • 02-04-2017
The slope/growth is 4.
Y= 4x+7
Figure 0 / y intercept= 7
The slope / growth = 4
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irspow
irspow irspow
  • 02-04-2017
Since this is a linear equation the rate of change or velocity is constant.  Take the derivative of y with respect to x...

dy/dx=4

This is commonly called the slope of the line.  All lines because they are straight have a constant velocity.
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