lilpeepxliltracy
28.06.2019 •
Mathematics
Which of the following points lie in the solution set to the following system of inequalities? y ≤ x − 5 y ≥ −x − 4 a. (−5, 2) b. (5, −2) c. (−5, −2) d. (5, 2)
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Ответ:
B. (5, -2)
Step-by-step explanation:Try the points in the inequalities and see what works. Here, we evaluate the point in the first inequality, and if that works, then the second inequality.
A. 2 ≤ -(-5) -5 . . . ⇒ . . . 2 ≤ 0 . . . false
B. -2 ≤ 5 -5 . . . true
... -2 ≥ -(5) -4 . . . true . . . . . . selection B is a viable choice
C. we know from A that the first inequality will be satisfied
... -2 ≥ -(-5) -4 . . . ⇒ . . . -2 ≥ 1 . . . false
D. 2 ≤ 5 -5 . . . . false
Ответ:
okay so what's the math problem
Step-by-step explanation