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

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Answer 1 · 2017-01-30T15:08:07

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

Substitute each ordered pair into the equation and see which satisfies the equality:

#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#