Question

A polynomial function can be written as (x + 1)(x + 4)(x - 7). What are the x-intercepts of the graph of this function?

(1, 0), (4, 0), (7, 0)

(-1, 0), (-4, 0), (-7, 0)

(1, 0), (4, 0), (-7, 0)

(-1, 0), (-4, 0), (7, 0)

Answer 1

@Conqueror i was thinking b but i am not sure

Answer 2

@bibby @gioskywalker @emmigrace222 @just_one_last_goodbye @AnswerMyQuestions @phi @undeadknight26 @Rainbow_dashie

Answer 3

@QuantumRanger @wizfan @El_loko_jose @animal_lover36 @stonewoods @HHS6281019 @yungkrystal @leonardo0430

Answer 4

mother of god how many ppl do you know XD

Answer 5

lol a lot i would guess

Answer 6

no one knows?

Answer 7

@Frostbite @justsmile531 @kirbykirby @kevindragonlord @Kittymeowb @kneaux @One098 @Night-Watcher @notsobrainiac @NoDaniel @navvy @Donblue22 @stonewoods @zpupster @zephyr141 @zephyr141 @ZnappyDooZ @ZoMbAsH @ZippySlug @xo.minnie.xox @XVasHappeninZen @xXDNAngelXx

Answer 8

to find the x-intercepts that mean y = 0
y=(x - 1)(x - 4)(x + 7)
0=(x - 1)(x - 4)(x + 7)
so we conclude that on of the multible should be 0
0= x - 1
or
0= x - 4
or
0= x +7
find x values in the three cases.

Answer 9

does that hlp?

Answer 10

i think, so your saying its not b? right i thought it might be B

Answer 11

@xXDNAngelXx

Answer 12

idk what do you think

Answer 13

as i said i was thinking B but idk this is why i ask if it is @xXDNAngelXx

Answer 14

@SouthernRebel101 so u dont get introuble please do not mass tag people u can get suspended for this just advice

Answer 15

i'm sorry i just want to know the answer and people wont help that much

Answer 16

Oh wait! Is this what you need? http://www.mathway.com/graph/MzYzNzE

Answer 17

@SouthernRebel101

Answer 18

TY SO MUCH

Answer 19

No Problem :P Mathway.com is a great site

Answer 20

XDNangle gave you the answer. it's right there in his/her reply. you have to solve for x in each of those situations.

Answer 21

solve for the first one.
0 = x + 1
-1 -1
---------
-1 = x
that's the first one. now do the same for the rest of them.

Answer 22

Oh, okay sorry i thought i had what she was asking. According to all of the websites and videos i watched, i was right but whatever

Answer 23

there u go @zephyr141 and im a boy

Answer 24

ty @zephyr141

Answer 25

(x + 1)(x + 4)(x - 7)=0 iff (x + 1)=0 OR (x + 4)=0 OR (x - 7)=0
implies x=-1 OR x=-4 OR x=7
so answer is (-1, 0), (-4, 0), (7, 0)

Answer 26

quick question, which grade are you?

Answer 27

I was right! I just told the wrong answer but showed the right info lol

Answer 28

@navvy did u see the link i did? Is that the same info u just said?