strange5eyes
09.02.2021 •
Mathematics
2) Line L is shown on the coordinate plane. Draw line M so that: ● Lines L and line M are graphs of a system of linear equations with a solution of (7,-2). ● The slope of line M is greater than -1 and less than 0. ● The y-intercept of line M is positive. Explain your reasoning why it makes sense.
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Ответ:
X=3;y= -2
Step-by-step explanation:
step1: I give name A to equation : 4x-3y=18,
and give name B to equation : 2x+y=4;
step2: 2B : 4x+2y=8
step3: A-2B: -5y=10, y= -2;
step4: since y= -2, B is: 2x+(-2)=4, so x=3