SOLUTION: y=-1/2x +1 if x = -2 if x = -1 if y = 1 if y = 1/2

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Question 122537: y=-1/2x +1
if x = -2
if x = -1
if y = 1
if y = 1/2

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
y=-%281%2F2%29x+%2B1
if x+=+-2 then y=-%281%2F2%29x+%2B1 will be:

y=-%281%2F2%29%28-2%29+%2B1
y+=+%281%2F2%29%2A2%2B+1
y+=+%281%2Fcross%282%29%29%28cross%282%29%29%2B+1
y+=+1%2B+1
y+=+2

if x+=+-1
y=-%281%2F2%29%28-1%29+%2B1
y+=+%281%2F2%29%2B+1
y+=+1%281%2F2%29
y+=+1.5


if y+=+1
1+=-%281%2F2%29%28x%29+%2B1
1-1=+-%281%2F2%29%28x%29
0+=+-x%2F2
x+=+0
if y+=+1%2F2
1%2F2+=-%281%2F2%29%28x%29+%2B1
1%2F2-1=+-%281%2F2%29%28x%29
-1%2F2=+-x%2F2
-x+=+-1
x+=+1