Question

@shalante can you help me with a problem

Answer 1

i just need help graphing something ..

Answer 2

Post it

Answer 3

okay so it says

Using the two functions listed below, insert numbers in place of letters a,b,c and d so that f(x) and g(x) inverses

\[f(x) = \frac{ x+a}{ b }\]

Answer 4

and g(x) - cx - d

Answer 5

for this part, i chose to do this f(x) = 2x + 5

Answer 6

to find g(x) we would have to find the inverse of f(x) right?

Answer 7

becaue i did it that way, and got this:

y=2x+5 (because i replaced f(x) and y)

Answer 8

am i correct so far?

Answer 9

f(x) has to be (x+any number)/a different number.

Answer 10

i got

x-5=2y/ 2

Answer 11

and then after simplifying that i got y = x-5 / 2

Answer 12

then where it says to evaluate g(x) i wasnt sure but this is how i did it:

Answer 13

is it g(x)-cx-d
or g(x)=cx-d?

Answer 14

g(f(x)) = (2x+5)-5 / 2

Answer 15

its g(x)=cx-d

Answer 16

wait im sorry i didnt include the parts

Answer 17

for part 1 it said show the work that the inverse of f(x) is g(x)

Answer 18

2nd*

Answer 19

the third part says to show my work evaluating g(x) and thats how i got the last ones

Answer 20

i got g(f(x)) = (2x+5)-5 / 2 , because i thought i would have to replace f(x) with the X in the g(x) ... if that makes any sense

Answer 21

and at the end its asking me to graph it and im lost o_o

Answer 22

what do you have to graph?
f(g(x))?

Answer 23

yes ..

Answer 24

i got this far : \[g(f(x)) = \frac{ (2x+5)-5 }{ 2 }\]

Answer 25

but im not sure how to graph it now

Answer 26

Can you type out the whole problem correctly in one box to make sure?

Answer 27

thats it....

Answer 28

tell me part 1,2,3 exactly from your assignment

Answer 29

I need to know all the parts to do the steps correctly.

Answer 30

Task 1

Part 1. Using the two functions listed below, insert numbers in place of the letters a, b, c, and d so that f(x) and g(x) are inverses.

f(x)=
x+a
/
b

g(x)=cx−d

Part 2. Show your work to prove that the inverse of f(x) is g(x).

Part 3. Show your work to evaluate g(f(x)).

Part 4. Graph your two functions on a coordinate plane. Include a table of values for each function. Include 5 values for each function. Graph the line y = x on the same graph.

Answer 31

And if you go to the top, thats how i did the work...

Answer 32

Part 1 Let a=5, b=2,c=2,d=5 so
Part 2


Part 3: