Question

Help!!!

Answer 1

Graph y = –2x^2 + 6. Describe what you see.

Answer 2

just graph it.

Answer 3

But I'm not sure about the "describe what you see" part, what do they want to hear about it exactly?

Answer 4

describe means answering the questions
1/ Whether the parabola up or down
2/Where is the vertex?
3/ Where is the roots?( x-intercept)
4/ Where is the y-intercept
Optional: domain, range.
That's it

Answer 5

Yeah and most of that I don't know T-T

Answer 6

hahaha... so, you have to graph it first.!!

Answer 7

I did

Answer 8

show me your graph

Answer 9

I meant I don't know it as in I literally don't know how to answer those things you listed

Answer 10

I used this https://www.desmos.com/calculator

Answer 11

to you, is it upward or downward?

Answer 12

I suppose downward because that's where it eventually goes? O.o I think I'm wrong though haha

Answer 13

yes, it is. it is downward
next, click at vertex, what do you see?

Answer 14

Is the vertex it's highest point?

Answer 15

yup

Answer 16

Woah I'm just an awesome guesser today! Okay so the vertex is (0,6) right?

Answer 17

The vertex is the y-intercept in this one O.O *mind blown*

Answer 18

yup, next, click at 2 points where the graph "cut" x-intercept, what do you see?

Answer 19

Like both places where it crosses the x line?

Answer 20

yup

Answer 21

I notice it's( -1.73,0) and (1.73,0) so if we subtracted them it would = 0, does that mean something? o.o

Answer 22

no, it is just the roots of the graph, and you can make conclusion on it by saying: the roots are \(\pm 1.73\)
Now, we have all of them, just summary. Hey!! you do your own conclusion, I do mine, we compete. ok? I say COMPETE, not COMPARE, dare you?? hahaha...

Answer 23

hahaha okay!

Answer 24

The graph of y=-2x^2+6 shows us that it is a downward parabola that has it's roots at \[\pm 1.73\] and it's vertex placed at (0,6)

Answer 25

Breaks out of the comments box, through the ad, and off into the distance...

Answer 26

{the graph of y=-2x^2+6 is a downward parabola with the vertex at (0,6).
\(\\ Its roots are x=-1.73 and x=1.73\ The parabola has y-intercept at y =6. Domain is (-\infty, \infty), range is (-\infty, 6)}

Answer 27

gtg