Inverse Functions Review

Find the inverse of      f(x) = 5/11x +10 

• f^-1(x) = 11/5x - 22
• f^-1(x) = 5/11x - 22
• f^-1(x) = 11/5x - 20
• None of the above

If the equation of f(x) goes through (1, 4) and (4, 6), what points does f^-1(x) go through?

• (1, 4) and (4, 6)
• (-4, -1) and (-6, -4)
• (-1, -4) and (-4, -6)
• (4, 1) and (6, 4)

What is the inverse of the given coordinates: (1, 2) (3, 8) (-3, 6)

• (1, 2) (3, 8)
   (-3, 6)
• (1, 2) (8, 3)
   (-3, 6)
• (-1, -2) (-3, -8)
  (3, -6)
• (2, 1) (8, 3)
   (6, -3)

Find the inverse of
f(x) = -4x - 12

• f^-1(x) = 4x - 3
• f^-1(x) = -1/4x - 3
• f^-1(x) = 1/4x + 3
• f^-1(x) = -4x - 3

What is the equation that the inverse will reflect across?

• y = x
• y = 0
• x = 0
• Potato

Are these inverse functions?

• yes
• no
• no way to tell
• maybe

Are these inverse functions?

• no
• yes
• no way to tell
• maybe

Are these functions inverses?

• Yes
• No
• no way to tell
• maybe

Are these functions inverses?

• Yes
• No
• no way to tell
• maybe

When finding the inverse of a relation, 
1st you replace f(x) with y
2nd switch the x's and y's
What do you do next?

• solve for y
• replace y with f^-1(x)
• solve for x
• find the greatest common factor