Advanced Algebra Inverse Functions

Let f(x) = -3x - 4 and g(x) = -7x +2.

Find (f º g)(-2)

The inverse of f(x) = 2x - 13 is

f^-1(x) = ?

The inverse of f(x) = 3 / (x + 4) is

f^-1(x) = ?

• (-4x + 3) / x

• (4x - 3) / x

• -3x / 4

• (-4x -3) / x

Find the inverse of f(x) = 3x² - 5

• f^-1(x) = ±√(x + 5)/3

• f^-1(x) = ±√(x - 5)/3

• f^-1(x) = ±√(x + 3)/5

• f^-1(x) = ±√(x - 3)/5

Are these the graphs of two inverse functions?

• Yes

• No

• No way to tell

Are the blue and red graphs inverse functions?

• yes

• no

• no way to tell

Was the inverse function found correctly?

• no,

• yes

An ​ (a)   takes a previously found result ( a y value) and returns it to its original value (x value). This means you are ​ (b)   a function

• function

• inverse

• 2 or more

• undoing

Is the inverse function found correctly?

• yes

• no

• All real numbers