anonymous
  • anonymous
Let f(x) = -4x + 7 and g(x) = 10x - 6, find f(g(x)). -40x + 24 -40x + 31 -40x + 64 -40x + 70
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
@ivettef365
anonymous
  • anonymous
same routine?
ivettef365
  • ivettef365
same thing substitute the x of f(x) for 10x -6

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anonymous
  • anonymous
so... -4x(10x - 6) + 7?
anonymous
  • anonymous
lets see... distribute... 10x(-4x) - 6(-4x) + 7
anonymous
  • anonymous
so... -40x - 24x + 7?
anonymous
  • anonymous
wait maybe take out the x of 24 and then add 7 so its -40x - 31?
ivettef365
  • ivettef365
remember it is by 4 not 4x so you have -4(10x) -4(-6) +7 also remember that - times - is positive
anonymous
  • anonymous
right so its -40x + 31?
ivettef365
  • ivettef365
correct, good job
anonymous
  • anonymous
thanks! I have one more question for ya then im done :)
ivettef365
  • ivettef365
ok

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