Question

Write the equation for the graphed function.

Answer 1

A. f(x)= |x-2|
B. f(x)= |x+2|
C. f(x)= |x| + 2
D. f(x)= |x| - 2

Answer 2

@wio

Answer 3

so identify the type of shift

Answer 4

Do I plug in one of the x values?

Answer 5

The graph shows that when x=-2, y=0.
This rules out the options [C] and [D] since for either, if we substitute x=0, y will be 2 or -2.
Right?

Answer 6

Right.

Answer 7

is it a shift left, right, up, or down?

Answer 8

Up...??

Answer 9

So carry on with the other options [A] and [B] now ...

Answer 10

Because it is already up.

Answer 11

no, the vertex didn't go up

Answer 12

Wait, so plug in..

Answer 13

What?

Answer 14

Plug in the value of x=-2 in [A] and in [B] and see what value of f(x) [=y] gives you a Zero. Right?

Answer 15

Oh.. okay. I'll do that.

Answer 16

Got it?

Answer 17

Did I do that right?

Answer 18

Yes :)

Answer 19

So you got your answer :)

Answer 20

Thanks! :)

Answer 21

Cool. Signing off now. Have a good day.

Answer 22

Yes! I got a 100! Thanks to both of you! :)