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Nov 19 2006
By: fearbe4 Last Guardian 11637 posts
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Desperately Need Help With My MAth Homework

9 replies 1 views Edited Nov 19, 2006
ok were doing this worksheet for homework and i suck at math so i need some help, here are some questions. and its going to be handed in so i need right answers thank yiou
 
 the coordinates of the vertex  of the graph of y = 2xsquared - 4x +1 are??? and its multiple choice so here are the answers (1, -1) (1,1) (-1,5) (2,1)
 
The graphs of the equation y = xsquared and x= -3 will intersect in???
 
1 point 2 points 3 points or 0 points?
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Gaming Beast
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Re: Desperately Need Help With My MAth Homework

Nov 19, 2006
graph them on a $130 calulator
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Fender Bender
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Re: Desperately Need Help With My MAth Homework

Nov 19, 2006


C_Wolf wrote:
graph them on a $130 calulator

LMAO!!   Wow, I honestly don't eve remeber doing that stuff in Math class.  LMAO!!
 
but he is right, 
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Last Guardian
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Re: Desperately Need Help With My MAth Homework

Nov 19, 2006
i accidently left it in school because my chem teacher wont let us use agraphing calculator in her class but i have to use one for math so i dont carry around 2 all day i put one in my locker and i forgot to take it out
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Fender Bender
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Re: Desperately Need Help With My MAth Homework

Nov 19, 2006
I bet you could find some kinda basic program that could do it on the PC.  Any ideas anyone?  Help a guy out....
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Last Guardian
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Re: Desperately Need Help With My MAth Homework

Nov 19, 2006
wow, im usually very good with math, but that stuff right there i deleted from my memory moments after i graduated college.
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Uncharted Territory
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Re: Desperately Need Help With My MAth Homework

Nov 19, 2006
The answer to the second question is 1 point where the two lines intersect.


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Fender Bender
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Re: Desperately Need Help With My MAth Homework

Nov 19, 2006
no homework threads allowed

���Dream as if you'll live forever, live as if you'll die today.��� ~ James Dean
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Keyblade Wielder
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Re: Desperately Need Help With My MAth Homework

Nov 19, 2006


animefreak111 wrote:
ok were doing this worksheet for homework and i suck at math so i need some help, here are some questions. and its going to be handed in so i need right answers thank yiou
 
 the coordinates of the vertex  of the graph of y = 2xsquared - 4x +1 are??? and its multiple choice so here are the answers (1, -1) (1,1) (-1,5) (2,1)
 
The graphs of the equation y = xsquared and x= -3 will intersect in???
 
1 point 2 points 3 points or 0 points?


To find the vertex of a parabola, you do -b/2a for the x coordinate, and then plug the number you get back into the equation and solve for y.
 
You don't even need to do any number crunching for the second one. Think about what y=x^2 is and what x = -3 is. y=x^2 is a function, which means it passes the vertical line test. x=-3 is a vertical line, so at most it can intersect the parabola once. Parabolas also have a domain of all real numbers, so x=-3 will intersect the parabola once.
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Fender Bender
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Re: Desperately Need Help With My MAth Homework

Nov 19, 2006
forget it...


Message Edited by i am a nutcrack on 11-19-2006 06:34 AM
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