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what is the inverse of 7x-11

 May 15, 2015

Best Answer 

 #1
avatar+128089 
+5

y = 7x - 11   add 11 to both sides

 

y + 11  = 7x    divide both sides by 7

 

[ y + 11 ] / 7  = x     "swap" x and y

 

[x + 11 ] / 7  = y       for y,  write  "f-1(x)"       {signifying the inverse function}

 

[x + 11 ] / 7  =  f-1(x)

 

 

 May 15, 2015
 #1
avatar+128089 
+5
Best Answer

y = 7x - 11   add 11 to both sides

 

y + 11  = 7x    divide both sides by 7

 

[ y + 11 ] / 7  = x     "swap" x and y

 

[x + 11 ] / 7  = y       for y,  write  "f-1(x)"       {signifying the inverse function}

 

[x + 11 ] / 7  =  f-1(x)

 

 

CPhill May 15, 2015

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