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samjordonBest ResponseYou've already chosen the best response.1
do u knwo how to complete the square? or do u factor it?
 one year ago

samjordonBest ResponseYou've already chosen the best response.1
lets factor its easy
 one year ago

tbrooks3Best ResponseYou've already chosen the best response.0
its under my quadratic function lesson so idk
 one year ago

samjordonBest ResponseYou've already chosen the best response.1
what 2 numbers when you multiply them =18 and when u add them =9?
 one year ago

tbrooks3Best ResponseYou've already chosen the best response.0
is there a number for that?
 one year ago

samjordonBest ResponseYou've already chosen the best response.1
yaaaa factoring i just taught this to my class today. hmmmm nooooo we r factoring. We r trying to figure out 2 numbers that when u mulyiply them give us 18 and when u add them gives us 9
 one year ago

satellite73Best ResponseYou've already chosen the best response.4
finding the zeros is a long and complicated way to find the minimum
 one year ago

samjordonBest ResponseYou've already chosen the best response.1
umm well we can complete the square
 one year ago

samjordonBest ResponseYou've already chosen the best response.1
but i dont think she knows that
 one year ago

satellite73Best ResponseYou've already chosen the best response.4
minimum is at the vertex, and first coordinate of the vertex of \[y=ax^2+bx+c\] is always \(\frac{b}{2a}\)
 one year ago

tbrooks3Best ResponseYou've already chosen the best response.0
when doing the vertx thing... is the second number the minimum?
 one year ago

satellite73Best ResponseYou've already chosen the best response.4
in your case it is \(\frac{9}{2}\) replace \(x\) by \(\frac{9}{2}\) to find the minimum
 one year ago

satellite73Best ResponseYou've already chosen the best response.4
minimum means minimum value of \(y\) so it is the second coordinate, not the first
 one year ago

satellite73Best ResponseYou've already chosen the best response.4
so yes, what you said, the second number is the minimum.
 one year ago

samjordonBest ResponseYou've already chosen the best response.1
ohhh i like this method. We never learnt this stuff. Like the textbook always made us complete the square. oh cooll
 one year ago

tbrooks3Best ResponseYou've already chosen the best response.0
can i just plug it into my graphing calculator to get the anwser ?
 one year ago

satellite73Best ResponseYou've already chosen the best response.4
completing the square is for suckers, unless of course you are solving a quadratic equation
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
last i heard minimum value was in a calculus class o.O i never knew it was in algebra too
 one year ago

LukecrayonzBest ResponseYou've already chosen the best response.1
It's in Algebra 2.
 one year ago

LukecrayonzBest ResponseYou've already chosen the best response.1
You can use a calculator to solve it
 one year ago

samjordonBest ResponseYou've already chosen the best response.1
hahah its in math 11 here in canada
 one year ago

satellite73Best ResponseYou've already chosen the best response.4
\[(\frac{9}{2})^2+9\times (\frac{9}{2})+18\] then a calculator if you need one
 one year ago

satellite73Best ResponseYou've already chosen the best response.4
you turn math up to eleven in canada? mine only goes up to ten
 one year ago

LukecrayonzBest ResponseYou've already chosen the best response.1
Ti84, input the equation into Y= then click 2nd Trace, and do minimum. It will say "Left bound?", go to the left side of the graph and press enter. Right bound? Obviously, right side. It will say "Guess?", which means put it to where you think the minimum y value is.
 one year ago

LukecrayonzBest ResponseYou've already chosen the best response.1
So for this, you get x=4.5 and y=2.25
 one year ago

tbrooks3Best ResponseYou've already chosen the best response.0
sooo many numbers ... ahhhhh!!! >_< what about TI83 plus?
 one year ago

samjordonBest ResponseYou've already chosen the best response.1
hahaha grade 11 math lol
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
so taking the derivative and equating to zero is another story?
 one year ago

LukecrayonzBest ResponseYou've already chosen the best response.1
It'll be exactly the same basically I think.
 one year ago

tbrooks3Best ResponseYou've already chosen the best response.0
they give us this freshman yr. imma senior now tryna make it up.. sucks :/
 one year ago

satellite73Best ResponseYou've already chosen the best response.4
using the derivative to find the minimum value of a quadratic. like using a glock to kill a wingspanroach
 one year ago
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