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# D1 - Linear Programming watch

1. Hi

I am stuck on how to work out the inequalities:

Image from OCR 4736 January 2005 Exam Paper

So far:

x>=0
y>=0 (i think)

how do i work out the rest?
2. Anyone?
3. y<[equation of line]
y<[other equation of line]

done
4. Work out the equations of all the boundary lines. Then test points ((0,0) and (1,1) usually work best) to see which way the inequalities go. Do you have your exam on Monday 25th?
5. thanks, yes my exams on the 25th
6. Don't forget to check to see if its a dotted line and therefore > or <
If its a solid line then >= or <=
7. Update:

Hi

Just to check what ive done wrong

(3,0) (0,4)

m = 4/-3 => -4/3

y-0=-4/3(x-3)
y=-4/3x + 4

test (0,3)

3=-4/3x0 + 4
3=4

3<=4

y<=-4/3x + 4
3y<=-4x+12

however does it make any difference that the answer is 4x+3y<=12

will it gain the same answer?
8. hey every one umm i am doing AQA D1 exam on Tuesday, and i am really worried about pseudo instructions as I have no idea what they are so would any one guide me to where i would possibly learn this

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