Question

if the graph of y=af(x-b) stretches the graph of absolute value x by a factor of 3,reflects it about the y axis and shifts it 2 units to the right ,which of the following are correct values of a and b
A.a=-3 b=-2
B.a=3 b=-2
C.a=3 b=2
D.a=-3 b=2

Answer 1

@terenzreignz

Answer 2

@iGreen can u help

Answer 3

can someone help me

Answer 4

A shift to the right or left is made by replacing x with x - b.
If x is positive, the shift is to the right.
If x is negative, the shift is to the left.

Answer 5

ok

Answer 6

y = f(x) compared to y = a*f(x)
If a is negative, it will reflects the graph across the x axis.

Answer 7

In your problem it states "reflects it about the y axis and"
Are you sure it's supposed to be reflected about the __y-axis__, and not the __x-axis__?
Was the problem copied correctly?

Answer 8

so what would the answer be

Answer 9

You need to answer my question above which you never did.
My question is in my response just above my two graphs.

Answer 10

its supposed to be reflected on the x axis

Answer 11

OK. That's better.

Answer 12

yea

Answer 13

The a that multiplies f(x - b), as in af(x - b) does two things.
It stretches the function if it is greater than 1 and it shrinks the function if it is between 0 and 1.
If a is negative, then the negative reflects the graph across the x axis.