anonymous
  • anonymous
Given f(x)=2x+5 and g(x)=8x+2 then what is (f−g)(−9)) ?
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
@UsukiDoll think you could help please ?
Vocaloid
  • Vocaloid
first off, (f-g)(x) = f(x)-g(x) = __ ?
anonymous
  • anonymous
8x+2

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More answers

Vocaloid
  • Vocaloid
not quite f(x) = 2x + 5 g(x) = 8x + 2 f(x) - g(x) = ?
anonymous
  • anonymous
-6x+7?
Vocaloid
  • Vocaloid
not quite, check your math one more time f(x) - g(x) = (2x + 5) - (8x + 2) = ?
anonymous
  • anonymous
-6x+3?
Vocaloid
  • Vocaloid
good! so we know that (f-g)(x) = -6x + 3 so what is (f-g)(-9)= ?
anonymous
  • anonymous
2x+14?
Vocaloid
  • Vocaloid
uh... not quite x = -9 (f-g)(x) = -6x + 3 = ?
anonymous
  • anonymous
8x+11?
Vocaloid
  • Vocaloid
x = -9 means replace "x" with "-9" whenever you see it (f-g)(x) = -6x + 3 = ?
Vocaloid
  • Vocaloid
if it's still unclear... (f-g)(x) = -6x + 3 = -6*(-9) + 3 = ?
anonymous
  • anonymous
57?
Vocaloid
  • Vocaloid
right
anonymous
  • anonymous
so thats the answer?
Vocaloid
  • Vocaloid
yes
anonymous
  • anonymous
could you help me with a few more please ? @Vocaloid
Vocaloid
  • Vocaloid
I need to get going, let me tag @Nnesha
anonymous
  • anonymous
@Nnesha think you could help me with this one please Match the correct graph to the function shown. f(x)=2sqrt3-4x +3
UsukiDoll
  • UsukiDoll
@Vocaloid thanks for helping. I'm super exhausted right now and just want to browse OpenStudy.

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