Q. 4x+5y≥−6−2x+7y≥20Is (−4,4) a solution of the system?Choose 1 answer:(A) Yes(B) No
Step 1: Check Point Satisfaction: Check if the point (−4,4) satisfies the inequality 4x+5y≥−6.Substitute x=−4 and y=4 into the inequality 4x+5y≥−6.4(−4)+5(4)≥−6−16+20≥−64≥−6The point (−4,4) satisfies the first inequality.
Step 2: Substitute Values: Check if the point (−4,4) satisfies the inequality −2x+7y≥20.Substitute x=−4 and y=4 into the inequality −2x+7y≥20.−2(−4)+7(4)≥208+28≥2036≥20The point (−4,4) satisfies the second inequality.
Step 3: Evaluate Inequality: Determine if (−4,4) is a solution to the system of inequalities.Since (−4,4) satisfies both inequalities 4x+5y≥−6 and −2x+7y≥20, it is a solution to the system.
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