Find the set of values for mod(x-5) < mod(3x-2)
So I have the correct answer.
But there are two intersects, and you get 4 possible x values in solving
x< -3/2 or x> 7/4
How am I supposed to fiugre out how to solve the x values (i.e. which ones do I choose).
I had to draw the graph, work out the intersect points - but surely I should know what I am looking for before hand?
i can upload my work if anoynoe wants, but since there are 4 possible x values how do i go about selecting the right ones in future
But there are two intersects, and you get 4 possible x values in solving
x< -3/2 or x> 7/4
How am I supposed to fiugre out how to solve the x values (i.e. which ones do I choose).
I had to draw the graph, work out the intersect points - but surely I should know what I am looking for before hand?
i can upload my work if anoynoe wants, but since there are 4 possible x values how do i go about selecting the right ones in future
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Why not just put them all back in to the original equation?
Original post by Student403
Why not just put them all back in to the original equation?
there is that I suppose, can't believe I forgot to do that. But surely when solving these questions, people know where to make the bracket negative, if you know what I am saying.
Original post by Mihael_Keehl
there is that I suppose, can't believe I forgot to do that. But surely when solving these questions, people know where to make the bracket negative, if you know what I am saying.
No I seem to remember just plugging all in to the original or sketching the graph to see when I did C4
Original post by Student403
No I seem to remember just plugging all in to the original or sketching the graph to see when I did C4
I see. Thanks.
Original post by Mihael_Keehl
I see. Thanks.
You're welcome
Original post by Student403
Why not just put them all back in to the original equation?
it is an inequalityOriginal post by the bear
:spank: it is an inequality
Original post by Student403
Original post by the bear
:spank: it is an inequality
kek just semantics haha
Original post by the bear
Haven't seen you trigger so much in a day!
Original post by Mihael_Keehl
kek just semantics haha
anyway... i always prefer to draw the graph first to see what is happening. as you say there are 2 intersections. we want the shallow V graph to lie below the steep V graph...
Original post by Student403
Haven't seen you trigger so much in a day!
Original post by the bear
anyway... i always prefer to draw the graph first to see what is happening. as you say there are 2 intersections. we want the shallow V graph to lie below the steep V graph...
I did do this.
But when you solve algreabraically for x there are 4 possible values which x satisfies, I wonder is there a way to know which ones to look for prior to actually working out the values.
Original post by Mihael_Keehl
I did do this.
But when you solve algreabraically for x there are 4 possible values which x satisfies, I wonder is there a way to know which ones to look for prior to actually working out the values.
But when you solve algreabraically for x there are 4 possible values which x satisfies, I wonder is there a way to know which ones to look for prior to actually working out the values.
i expect if you are genius you can figure it out... us lesser mortals need a pic
Original post by the bear
i expect if you are genius you can figure it out... us lesser mortals need a pic
ah okay thnx
Original post by Mihael_Keehl
ah okay thnx
Nice calculator
Original post by Student403
Nice calculator
lolz that one is fx-991DE Plus
Spoiler
Original post by Mihael_Keehl
lolz that one is fx-991DE Plus
Spoiler
Oops lol - I use the fx-115ES PLUS
Original post by Student403
Oops lol - I use the fx-115ES PLUS
is that better mine/better than fx991-es
I also have a ti84 + c silver calcualsatos
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