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Which ordered pair is a solution of the equation y = 3x: (–2, –9), (–8, –18), (–8, –3), (–10, –30)?

Answer 1

Abigail Allen

The ordered pair #(-10, -30)# is a solution.

Find the pair that satisfies the equality by substituting each ordered pair into the equation:

#color(red)(-2, -9)#:

#-9 = 3 xx -2#

#-9 != -6#

#color(red)(-8, -18)#:

#-18 = 3 xx -8#

#-18 != -24#

#color(red)(-8, -3)#:

#-3 = 3 xx -8#

#-3 != -24#

#color(red)(-10, -30)#:

#-30 = 3 xx -10#

#-30 = -30#

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Answer 2

Kennedy Adams

The ordered pair (–8, –24) is a solution of the equation y = 3x.

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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.