Section 6.2 Inverse Functions

What's the name of the inverse of g(x)?

• f(x)
• f^-1(x)
• y
• g^-1(x)

Tags

CCSS.HSF-BF.B.4A

• a

• b

• c

• d

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

Tags

CCSS.HSF-BF.B.4A

What is the inverse of the function

f(x) = 2x + 4 ?

• f^-1(x) = 4(x -2)

• f^-1(x) = (x-4)/2

• f^-1(x) = x/2 - 4

• f^-1(x) = x/4 + 2

Find the inverse

f(x)=2x-2

• f^-1(x)=(x+2)/2

• f^-1(x)=-2-1/2x

• f^-1(x)=-7/3x-20/3

• f^-1(x)=(x-2)/2

Find the inverse of
f(x) = 1/4x - 7

• f^-1(x) = 1/4x + 7/4
• f^-1(x) = -4x + 28
• f^-1(x) = -4x - 7
• f^-1(x) = 4x + 28

Tags

CCSS.HSF-BF.B.4A

What is the inverse of the points
(1,3)(2,4)(6,8)

• (3,1)(4,2)(8,6)
• (-3,-1)(-4,-2)(-8,-6)
• (1,3)(2,4)(6,8)
• (-1,-3)(-2,-4)(-6,-8)

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)

Tags

CCSS.HSF-BF.B.4C

What is the inverse of the points (1,3)(2,4)(6,2)

• (2,6)(3,1)(4,2)
• (-3,-1)(-4,-2)(-2,-6)
• (1,3)(2,4)(6,2)
• (-1,-3)(-2,-4)(-6,-2)

Tags

CCSS.HSF-BF.B.4C

Does this mapping pairing inputs on the left with outputs on the right represent a one-to-one function?

• Yes, this is a one-to-one function

• No, it is not a one-to-one function