#Use the vertex and intercepts to sketch the graph of the quadratic function. Give the equation for t

61 messages · Page 1 of 1 (latest)

rancid vault
queen timberBOT
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rancid vault
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Stuck on squaring

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Currently got $-10+2\sqrt{5}$

lunar heraldBOT
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WhiteDevil's Boomstick

rancid vault
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$-10\sqrt{80}$

lunar heraldBOT
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WhiteDevil's Boomstick

rancid vault
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What it came from

rancid vault
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What got rn, but says it's wrong

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Idk what to split 80 into

timid ice
rancid vault
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80>54>5 and 22

rancid vault
timid ice
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80>5*4>5 and 2*2
what where did you get any of this from

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how were you taught to fidn the vertex

rancid vault
lunar heraldBOT
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WhiteDevil's Boomstick

rancid vault
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I used this formula

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got -5

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Then I got (-5,-20) from filling it in

timid ice
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thats the vertex

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i think you typed the roots into the vertex box

rancid vault
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I already had it(-5,-20) in the vertex box

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But then I got to the roots and I was stumped trying to break down 80

timid ice
rancid vault
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What I solved from doing the answer in quadratic formula

timid ice
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oh ok i see

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so simplifying radicals right

rancid vault
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Yea, just the biggest pain was getting 80 into a prime

timid ice
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80=16*5

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$\sqrt{80}=\sqrt{16}\cdot\sqrt5$

lunar heraldBOT
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!𒐪 ɹɐupoɯ⇂ㄥ8𝟝 𒐪!

rancid vault
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My brain is weird

Cause I'm not sure to break down the 4 or not

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But it ended up being 4

timid ice
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wdym break down the 4

rancid vault
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Put it into 2*2

timid ice
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does it want the coordinates of the x intercepts or just their values

rancid vault
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What the example showed me

timid ice
rancid vault
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Ah, I see now

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Like the x-cerpts were the hardest part me tbh

timid ice
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makes sense yea

rancid vault
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Help with this since Idk what this is

timid ice
rancid vault
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I see this, but I'm like "how does that work"

timid ice
rancid vault
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I imagine it

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is like

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$-(x^2 + 2x + 1)

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$-(x^2 + 2x + 1)$

lunar heraldBOT
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WhiteDevil's Boomstick

timid ice
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have you not learned transofmration (jeez) rules

rancid vault
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Probably forgot em tbh

timid ice
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rip

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basically f(-x) is a reflection about the y axis

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and -f(x) is a reflection about the x axis

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anyways tragic news i need to get some sleep so gn :(

rancid vault
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Rip but thanks

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+close