Question

f(x)=x^2+3x-4

Answer 1

find the domain,range, axis of symetry, and vertex

Answer 2

@Hero

Answer 3

@pooja195, help her

Answer 4

:)

Answer 5

Have you started this yet? If so what do you have so far? :)

Answer 6

No, I tried to but it didn't really make sense. I graphed it though by plugging in points

Answer 7

Thats fine
Starting with all real numbers, the domain is the largest possible set of x values that has a meaningful y value.
The largest possible set of x values is all the real numbers, since each real number has a meaningful output , there is no division by zero or square root of a negative number.

Answer 8

okay so the domain would be all real numbers?

Answer 9

yes :)

Answer 10

Wanna try out range?

Answer 11

sure

Answer 12

For range there is no simple formula. You have to look at the graph and find the y values which are 'hit'

Answer 13

y<=4?

Answer 14

Look at this
https://www.desmos.com/calculator/9zbczplemb

Answer 15

Range would be the green line

Answer 16

if you shine a flashlight horizontally , the range is the shadow

Answer 17

so, y<-3/2??

Answer 18

thats the axis of symmetry

Answer 19

ok, so then what would the range be? Sorry, I dont understand this part

Answer 20

The range would be y>= -25/4 because the range is the y values of the ordered pairs of your function

Answer 21

oh okay! So now all we need is the vertex which is -1.5,-6.25?

Answer 22

Thats correct good job :)

Answer 23

Thanks for your help:))

Answer 24

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Answer 25

Lol! Aww! That's so sweet<3!!!! Thanks:D

Answer 26

:3 <3

Answer 27

ty you too, hero:)

Answer 28

@ChloeSiouz hold up theres a mistake

Answer 29

Ok:)

Answer 30

range is y>-4
it means you can't get value less than -4 by putting any value of x

Answer 31

Alright, is the axis of symmetry still the same though?

Answer 32

so, is everything else okay?

Answer 33

It remains the same. Everything else looks fine.

Answer 34

cool:)! Glad you caught that hhaaha:)

Answer 35

:)