Question

Graph the function. lx + 2l -2

Answer 1

Do you know how to graph y=|x|? We just take the graph of |x| and move it a bit for this function

Answer 2

i have no idea what your talking about can u draw what my graph looks like

Answer 3

you have no idea? is there something thats confusing you in particular?
y=|x| is just a function (the absolute value of x), its just a "V" on the graph
|x + 2| - 2 is moving the entire graph down two and left two, but keeping that same shape

Answer 4

i just dont uderstand the whole question

Answer 5

like, this would be the graph of |x|

Answer 6

and then we just take the entire graph and "shift" it, move it like this
you should end up with the same graph, but at a different location

Answer 7

yea the way your explaining it is confusing me lol

Answer 8

sorry, its not the easiest thing to explain. :P
did you learn how to do the transformations? maybe I'm approaching this in the way i learned it and not how you learned it

the graph looks like this (in purple)

Answer 9

i havent learned that at all

Answer 10

are you just doing graphing different functions then? Like, picking x-values and finding the y-value to plot them on the graph?

Answer 11

honestly i have no idea :( this is the only graphine problem i have on my homework

Answer 12

hmm.. what section are you doing, then?

Answer 13

or, whats the topic*

Answer 14

i have 4 questions that i have no idea how to do this is pre algebra i do online schooling

Answer 15

this is another one of my questions A fireworks company has two types of rockets called Zinger 1 and Zinger 2. The polynomial -16t^2 + 150t gives the height in feet of Zinger 1 at t seconds after launch. The polynomial: -16t2 + 165t gives the height of Zinger 2 at t seconds after launch. If the rockets are launched at the same time and both explode 6 seconds after launch, how much higher is Zinger 2 than Zinger 1 when they explode?
A. 414 ft B. 990 ft C. 90 ft D. 324 ft

Answer 16

Oh! Okay. I'm totally thinking that this was like Algebra II transformations! (It looked that way from my point of view, heh)

The other way to do this problem is just selecting a few points to plot and finding the y-values
then you plot them on the graph

like, you could do x=-3, x=-2, x=-1, x=0, and x=1 and find those y-values, plot them on x-y graph

Answer 17

this is choice a (-2, -2)

Answer 18

that should be correct.for the first one then

Answer 19

for the second problem about the rockets, we know that the polynomials are the height of the rockets after time t
we just use t=6 in each polynomial since that'll give us the height for each rocket at that time