Please help me. Medals awarded which ordered pair is a solution to the system? system: y > -2 x + y < 4 A. (-3,5) B. (0,4) C. (-2,-3) D.(1,4)
Take each choice and see which works; For example, choice (A)... x = -3 and y =5..does this work for both inequalities? Well, y > -5 which is good as we have y = 5; and is -3+5<4, yes it is..so A is a solution. Check that the other pais do NOT work for both inequalities.
start plugging in each point and check whether both inequality satisfies. i'll do the last one, you do the 1st, deal ? 1,4 -----> x=1, y=4 y>-2 4>-2 ---> TRUE x+y<4 1+4<4 5<4 --->FALSE so last option is not correct. got this ?
hartnn answer is good!
(-3,5) 5 > -2 true -3 + -2 = -1 -1< 4 trueee
good work! :)
thanks so much 1 :)
welcome so much 1 :)
but actually x+y = =3+5 = 2 and 2<4 is trueee
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