dyllonhuffmanp6azzf dyllonhuffmanp6azzf
  • 03-01-2019
  • Mathematics
contestada

If f(x)=-8x+4, then f^-1=

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jimrgrant1 jimrgrant1
  • 03-01-2019

Answer:

[tex]f^{-1}[/tex](x) = [tex]\frac{4-x}{8}[/tex]

Step-by-step explanation:

let y = - 8x + 4

rearrange making x the subject

add 8x to both sides

8x + y = 4 ( subtract y from both sides )

8x = 4 - y ( divide both sides by 8 )

x = [tex]\frac{4-y}{8}[/tex]

change y back into terms of x, then

[tex]f^{-1}[/tex](x) = [tex]\frac{4-x}{8}[/tex]


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