GCSE Maths Question - Have a look at the screenshot attached

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realboss_sh
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#1
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#1
Hi,

I have solved it simultaneously but have trouble understanding how to draw the graph. If someone could draw it from or aid me in how to do it. It would be a pleasure.
Name:  Capture.PNG
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Size:  53.6 KB
Last edited by realboss_sh; 1 month ago
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the bear
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#2
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#2
ermm there is no attachment
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realboss_sh
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#3
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#3
(Original post by the bear)
ermm there is no attachment
my bad I have uploaded now! Thanks for letting me know!
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the bear
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#4
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#4
ok it is there now....

if you have a statement

"5x + 2y = 3.6"

you can rearrange it into the form

y = 1.8 - 2.5x

which is the equation of a straight line....
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realboss_sh
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#5
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#5
(Original post by the bear)
ok it is there now....

if you have a statement

"5x + 2y = 3.6"

you can rearrange it into the form

y = 1.8 - 2.5x

which is the equation of a straight line....
still don't get it please could you solve the problem and draw the graph.
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the bear
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#6
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#6
(Original post by realboss_sh)
still don't get it please could you solve the problem and draw the graph.
unfortunately we are only allowed to give hints and that
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davros
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#7
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#7
(Original post by realboss_sh)
still don't get it please could you solve the problem and draw the graph.
It's against forum rules to post solutions, but surely you have plotted graphs of the form y = mx + c or alternatively ax + by = c? You just need to draw a couple of straight lines representing the info you're given and find their intersection
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mlee531
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#8
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#8
Just use the form y = mx + c. If you rearrange the two equations you have into that form, you should be able to just find the intersection by equating the two lines, and therefore draw the graph.
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