Mathematics
meggie
1

Mathematics help. Solve photo question, please.

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(2) Answers
Johnnap

We should substitute each and check in this case: The maximum value can only be -3 is 4 - 2(2) ≤ -3 ?  Lets check: 4 - 4 ≤ -3 0 ≤ -3          ⇔         this is wrong The solution is the last one because: -1 - 2(1) ≤ -3 -3 ≤ -3 (1,-1)

scheckuribe

Just plug in the answer choices and see which one works. (x,y)  ^ ^ Plug in the x-value for x in the equation and do the same for y. Let's try answer choice D (because I already know it's correct). (1,-1)   ^  ^  x   y The equation is: [latex]y-2x \leq -3[/latex] Plug in! [latex](-1)-2(1) \leq -3\\-3 \leq -3\\\\\sf\ Answer: D[/latex]

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