Question

Functions help.

Answer 1

What will the new equation be? Just give me that and I can solve it from there.

Answer 2

x --> 3-x
7 --> ?

Answer 3

Not enough.

Answer 4

x --> 3-x
7 --> 3-7
--> ?

Answer 5

Oh alright, -4

Answer 6

yes! btw your dp is cute :)

Answer 7

Thanks, haha.

By the way, I have more function questions if you're okay with that?

Answer 8

as long as they are new and you're learning i am okay

Answer 9

I'm always am :)

Answer 10

here is the rule for a relation to be a function :

the `x values` must not repeat

Answer 11

Yes, I got that.

Answer 12

Do I have to make a graph or a table?

Answer 13

Look at the first option,
it has repeated x values for first two points :

{( `2`, 4), ( `2`, -7),...

Answer 14

so its not a function.

Answer 15

next look at second option,
does it have repeated x values too ?

Answer 16

The only answer would be D.

Answer 17

Actually wait

Answer 18

Awesome !!

Answer 19

D is correct, do you have a doubt ?

Answer 20

Oh nevermind, sorry, I saw the number not the signs lol.

Answer 21

the \(\large \sqrt{x}\) is not defined for negative `x` values in reals

Answer 22

so the doman is x >= 0

Answer 23

all real numbers greater than or equal to 0

Answer 24

can do this on my own, but I'm too lazy at the moment. Not a right way to completed this :/

Answer 25

do it when you're not lazy

Answer 26

Just need help on this last one. Can't find the table for it.

Answer 27

Need help on the second one.

Answer 28

Notice that the function was broken int 3 intervals

Answer 29

Yes

Answer 30

-2 when x < -3

4x when x is between -3 and -1

x^2 when x > -1

Answer 31

since 3 is > -1,

you need to use the last line

Answer 32

f(x) = x^2

f(3) = ?

Answer 33

Still not sure what it would be without the table.

Answer 34

f(x) = x^2

f(3) = 3^2
= ?

Answer 35

9

Answer 36

correct!

Answer 37

So I just needed to replace x by 3?