Asked by Anonymous

Determine a relationship between x- and y-values. Write an equation.

{(1, -1), ( 2, -2), (3, -3), (4, -4)
Answered by Reiny
mmmhhh
did you notice that the y is always the negative of the x ???

so .....
Answered by Anonymous
Is the answer y = -x, then?
Answered by Fernando
x=-y

so that would be the general expresion
Answered by Fernando
or even better you could say that x+y=0
Algebra teachers like it more :)
Answered by Anonymous
Are you certain?
Answered by Jamie
jason wants to buy his brother a comic book. If he buys it online it costs $3.50, but if he buys it in the store there is a 20% markup. How much does the comic book cost in the store?
Answered by Kuai

y = -x
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