Question

Help!!!!!
Evaluate the function at the specified values of the independent variable and simplify.

Answer 1

help please!!!

Answer 2

Evaluate = plug the values in:
f (x) = √ (x +8) +2
->f (-8) = √ (-8 +8) + 2 = ...

Similarly for 1 and x -8

Answer 3

can you do it with me please? i have a whole bunch of hw problems similar to this, so just helping me complete the one will show me how to do all the others on my own :)

Answer 4

√ (-8 +8) + 2 = √ 0 + 2 = 2

Answer 5

Could you try:
-> f (1) = √ (1 +8) +2

Answer 6

=(9)+2=11 ?

Answer 7

= √ (1 +8) ( sqrt of 9 = ? )

Answer 8

3

Answer 9

= 3 + 2 = ..

Answer 10

5!

Answer 11

That's how you calculate, remember √ is sqrt

Answer 12

ok, so for c, how do i do that? since its x-8 ?

Answer 13

All you do is to plug whatever value in! Do it here, so I can help!

Answer 14

ok, ummm, f (x-8) = .... ???

Answer 15

Yep, you're on the right track, keep going :)

Answer 16

sqrt (x-8) ?

Answer 17

one more element to go, you can do it =)

Answer 18

sqrt (x-8)+2?

Answer 19

f (x-8) = sqrt (x-8)+2
That's it!

Answer 20

but how would i find that square root, i dont know what x is

Answer 21

Hold on, not yet!

Answer 22

f (x) = √ (x +8) +2
f (x-8) = √ (x +8 +8) +2

Answer 23

Whatever not x, keep them where they belongs:

Answer 24

huh?

Answer 25

Did you see the template has +8 in the sqrt and + 2 out of sqrt? Keep them there!

Answer 26

ohhh ok, so whats the next step from there?

Answer 27

Can you add?

Answer 28

16x+2

Answer 29

or would it be (sqrt x+16)+2 which would be (x+4)+2?

Answer 30

f (x-8) = √ (x +8 +8) +2
= √ ( x + 16 ) +2

Answer 31

That's it! no more calculation!

Answer 32

wooooooohhh! thanks so much :)

Answer 33

If you have trouble with simplifying, just align very terms like I showed you :)

Answer 34

thank you sooooo much, youve really helped me :)

Answer 35

Practice more will help you less confused :)