Question

Question! Screenshot attached! I need someone to help and guide me through understanding these questions.

Answer 1

what is our take on first question, hint it is shifting on horizontal axis

Answer 2

for first question it is A

Answer 3

nope its A

Answer 4

that's what i was saying

Answer 5

@uzumakhi , sorry it was not meant for you, I know you are right : )

Answer 6

in this -ve sign shows delay and in delay graph shifts to right
is it clear?

Answer 7

take second one like
\[y+3 = \sqrt{x+4}\]

Answer 8

now what will you see?

Answer 9

@charlotteakina are u here?

Answer 10

ok then what is the answer of second?

Answer 11

are u still here or not?
@charlotteakina

Answer 12

ok then what is the answer of second?

Answer 13

its y+3 then we will shift the graph down by 3
its x+4 then we will shift the graph left by 4

Answer 14

is it clear now?

Answer 15

that's things teacher doesn't tell you have to analysis this by yourself

Answer 16

exactly opposite

Answer 17

is it clear to you?

Answer 18

okay okay

Answer 19

now u get the point

Answer 20

Give x a value like 9 then
\[\sqrt{9}=3\]
Then \[\sqrt{9-6}=\sqrt{3}\] Note the value of y did not change by 6 at all but went from a 3 to the sq rt of 3. I am totally confused. I see no correct answer for the first one.

Answer 21

@cwrw238 Please straighten me out on this.!!

Answer 22

the correct answer for the first on is A

Answer 23

@radar - i'll have to think about that one

Answer 24

i think you have to look at the value of x when same value in each graph:
y = sqrtx : for y = 0, x = 0
y = sqrt(x - 6) for y = 0, x = 6

thats 6 to the right

Answer 25

you were looking at the value of y which would get lower as graph stays same shape but moves to the right.

Answer 26

and as x increases so does y ( for y = sort x)

Answer 27

Thanks, I was not looking at it in the correct perspective. Thanks for clearing that up @cwrw238