Question

what is the vertex of the graph of the function y=|-3x+2|-4?
Options
A) (-2/3,-4)
B)(2/3,-4)
C)(2/3,4)
D)(-2/3,4)
and how did u get your answer

Answer 1

hhhhheeeeellllllllllllppppppppppp ill give u a medal

Answer 2

@telliott99 can you please help

Answer 3

can someone help us

Answer 4

K

Answer 5

ok

Answer 6

I am not so swift with absolute value. I don't remember the rules. But I would suggest trying some points to get a sense of what the graph looks like.

Answer 7

So that's another thing, shouldn't there be an equals sign in there.

Answer 8

tabby have you tried plugging in each choice to see which one fit right?

Answer 9

ther it is just made a mistake typing it

Answer 10

missed the equals at first OK
x = 1; y = -3
sound right?

Answer 11

no i gave u options

Answer 12

So here's the deal. I can't just look at it and it magically comes to me. I have to work it out. The best way I know is to get a sense of what's happening in a function by generating some points..

Answer 13

ok

Answer 14

So what I'd suggest is that you try some points, in particular
x = -1, 0, 1 and then +/- 1/3, 2/3

Answer 15

lost me there

Answer 16

The other way to do it I just remembered.

Answer 17

You write the equation twice. In one, you put the absolute value term with a + sign and in the other you put the absolute value term with a - sign and solve them both. At least, that's what I remember.
So, I think you're on your own from here. Yell if you get partway but are still confused.

Answer 18

Lost you on trying points ?????

Answer 19

What's the first thing about graphing an equation? Think of some x-values, plug em in, get y. Plot the points.