The line y = –2x – 8 is graphed. Which ordered pairs are solutions to the equation? Check all that apply. (–8, 8) (–6, 2) (–2, 4
2 answers:
Use the substitution method by using all of the coordinates into y=-2x-8
(-8,8)
y=-2x-8
8=-2(-8)-8
do the bracket first
8=16-8
8=8
(-6,2)
2=-2-(6)-8
2=12-8
2=4
(-2,4)
4=-2(-2)-8
4=4-8
4=-4
(0,-4)
-4=-2(0)-8
-4=-8
(2,-12)
-12=-2(2)-8
-12=-4-8
-12=-12
Answers:
(–8, 8) and (2, –12)
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