Solve the system of inequalities to decide if the point (-3,2) is part of the solution; y<=-4x-3, +8y>=7

Question

Solve the system of inequalities to decide if the point (-3,2) is part of the solution; y<=-4x-3, +8y>=7

in progress 0
Thu Thảo 6 months 2021-07-30T00:13:11+00:00 1 Answers 2 views 0

Answers ( )

    0
    2021-07-30T00:14:58+00:00

    Answer:

    (x,y) = (-3,2) is a solution

    Step-by-step explanation:

    Given

    y \le -4x + 3

    x + 8y \ge 7

    Required

    Determine if (x,y) = (-3,2) is a solution

    y \le -4x + 3 becomes

    2 \le -4 * -3 + 3

    2 \le 15 — this is true

    x + 8y \ge 7

    -3+ 8 * 2 \ge 7

    13 \ge 7 — this is also true

    Hence,

    (x,y) = (-3,2) is a solution

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )