Question 220192: Could you check my work?y=2x+5 (8, ) (-1, ) ( ,1)
(8, )
y= 2*8 + 5
y= 16 + 5
y=21
(-1, )
-1=2x +5
-5 +-1 = 2x +5 --5
-6=2x
-3=x
( ,1)
y=2x+5
y=2-1+5
y=-2 +5
y=3
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Could you check my work?y=2x+5 (8, ) (-1, ) ( ,1)
(8, )
y= 2*8 + 5
y= 16 + 5
y=21
--> (8,21)
--------------
(-1, )
-1=2x +5 You subbed for y ??
-5 +-1 = 2x +5 --5
-6=2x
-3=x
-------------
y = 2x + 5
y = 2*-1 + 5
y = 3
--> (-1,3)
------------
( ,1)
y=2x+5
y=2-1+5 Here you subbed for x ??
y=-2 +5
y=3
-------
1 = 2x+5
2x = -4
x = -2
--> (-2,1)
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