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Assume y varies inversely as x, how do you write the equation given y=-4 when x=-3?

Answer 1

The equation can be written as y = k/x, where k is the constant of variation. To find the value of k, substitute the given values of y and x into the equation and solve for k. In this case, when y = -4 and x = -3, the equation becomes -4 = k/(-3). Solving for k, we get k = -12. Therefore, the equation is y = -12/x.

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Answer 2

Julia Adams

#y=12/x#

#y=k/x#, where k is a constant

Subsitute #y=-4# and #x=-3#,

#-4=k/-3# #k=-4xx-3# #k=12#

Hence, the inverse proportional equation is #y=12/x#

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.