#Graphing question Help!

124 messages · Page 1 of 1 (latest)

raven gyro
rich boneBOT
raven gyro
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how did they graph this? I get where the points came from but I am struggling to understand the graph

proper ibex
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Okay

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So you see f(x)=2x+8

twilit gull
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Okok we make it simple

proper ibex
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Wait

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You got it

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Mb

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I will stop

twilit gull
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Let's help together

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Uka they have taken f(x) as different functions for different x

proper ibex
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Ok

twilit gull
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@raven gyro

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I meant Uka sry jace

raven gyro
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okayyy

raven gyro
twilit gull
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So can u tell me

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Where u have doubt

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How they drew the functions?

raven gyro
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yeah I don't get how they drew it

twilit gull
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Okok

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See

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For x less than or equal to -2

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We have f(x) as 2x+8

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U know straight lines?

raven gyro
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YESSS

raven gyro
twilit gull
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Do u know it's graph

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Like how can u draw the straight line y=2x+8

raven gyro
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we would have to find slope and y-int

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y-int is 8

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so we can plot that

twilit gull
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Yes

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So find

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And try

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To plot

raven gyro
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looks like this

image.png
twilit gull
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Good

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But see

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We need this graph only upto x=-2

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So we draw

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,w plot y=2x+8 , x<=-2

quasi mountainBOT
twilit gull
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But we need this graph

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Only for x<=-2

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So

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,w plot y=2x+8 from -inf to -2

quasi mountainBOT
raven gyro
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ahhhh okay I see

twilit gull
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So till x=-2

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We draw the graph of line

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Then for x>-2

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We switch to other function as given

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From -2 to 3

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We have f(x)=x^2-3

astral pagoda
twilit gull
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Can u factorise x^2-3

raven gyro
twilit gull
twilit gull
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Can u see f(x)=x^2-3

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Try to read what is on the right of it

raven gyro
twilit gull
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Yess

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This means they wanna say

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That for x>-2 and less than or equal to 3

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We draw this graph

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Or we say that our function is this

raven gyro
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so in -2 it would be an open circle to show it's not included right

twilit gull
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Yes

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See

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They have included the point x=-2

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For f(x)=2x+8

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But not for f(x)=x^2-3

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That's why u see a open circle in the graph of x^2-3

raven gyro
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ahh okayy

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got itt

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what about the third function

twilit gull
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Now bout the third function

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See what is on the right of it

raven gyro
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x is greater then 3

twilit gull
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Yes

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So we draw it's graph for x>3

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@raven gyro simple

raven gyro
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I don't get the last one

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this is how the graph looks

twilit gull
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Yes

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,w plot √(x+3) , x>3

quasi mountainBOT
twilit gull
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,w plot √(x+3) x>3

quasi mountainBOT
twilit gull
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@raven gyro

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Actually they have drawn the graph from x>3

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And symbolised the graph till infinity using an arrow

raven gyro
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ahh okay I see now

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thanks alottt @twilit gull

twilit gull
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Welcome

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Np

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U can type .solved

raven gyro
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.solved

twilit gull
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To close the post

rich boneBOT
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Solved

Post marked as solved by @raven gyro.

Use .unsolved if this was a mistake.

twilit gull
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Welcome

raven gyro
twilit gull
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Keep grinding

raven gyro
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I willl : D

twilit gull
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🙂

astral pagoda
twilit gull
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Bro

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U are the goats of 🐐

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Biggest brain in the server

astral pagoda
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you will lead an army

twilit gull
astral pagoda
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it will be called opps

twilit gull
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No

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bleakkekw 💀

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No no no