Mathematics
08.03.2021 21:17
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X-2y=-2 y=2x+4 solve by substitution
X-2y=-2
y=2x+4
solve by substitution
Show Answers
y=2x+4
solve by substitution
thall5026
4,5(11 marks)
Subsitut 2x+4 for y
x-2(2x+4)=-2
x-4x-8=-2
-3x-8=-2
add 8 to both sides
-3x=6
divide by -3
x=-2
sub back
y=2x+4
y=2(-2)+4
y=-4+4
y=0
x=-2
y=0
(x,y)
(-2,0)
x-2(2x+4)=-2
x-4x-8=-2
-3x-8=-2
add 8 to both sides
-3x=6
divide by -3
x=-2
sub back
y=2x+4
y=2(-2)+4
y=-4+4
y=0
x=-2
y=0
(x,y)
(-2,0)
milesjreece3939
4,5(61 marks)
An artist is making a scale model of a statue. On the model 2 inches represents 1 foot on the actual statue. Which graph best represents
this relationship?
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