contestada

Select the correct answer from each drop-down menu.
Tom used the following steps to find the inverse of fx), but he thinks he made an error.
Step 1
$(x) = 4x - 2
given
Step 2
y = 4x - 2
change f(x) to y
Step 3
= 4y - 2
switch r and y
Step 4
- 2 = 4y
subtract 2 from each side
Step 5
=y
divide each side by 4
Step 6
change y to y-1(x)

Select the correct answer from each dropdown menu Tom used the following steps to find the inverse of fx but he thinks he made an error Step 1 x 4x 2 given Step class=

Respuesta :

Answer:

  • Step 3.
  • not switch the variables.

Step-by-step explanation:

Tom wanted to find the inverse of f(x)= 4x - 2 using the steps in the attached image.

Tom's first mistake was in Step 3.

To correct the mistake, he should not switch the variables.

The correct procedure is:

Step 1 : Given

f(x) = 4x - 2

Step 2 : Change f(x) to y

y = 4x - 2

Step 3 : Add 2 to both sides

[tex]4x=y+ 2[/tex]

Step 4:  Divide each side by 4

[tex]x=\dfrac{y+2}{4}[/tex]

Step 5: Change x to [tex]f^{-1}(x)[/tex]

[tex]f^{-1}(x)=\dfrac{y+2}{4}[/tex]

Answer:

step 3

Add 2 to each side

Step-by-step explanation:

In step three he subtracts two when in the equation 2 was being subtracted already and to move a constant you do the opposite than the original because then they will cancel out

Otras preguntas