What is the y-intercept for the linear equation 3x - 2y = 18?

1 Answer
Alan P.
Jun 29, 2015

The y-intercept of #3x-2y=18# is #(-9)#

Explanation:

The y-intercept is the value of y where the line of the equation crosses the y-axis.
For all point on the y-axis, #x=0#
So the y-intercept can be determined by evaluating the equation for y with #x# set to #0#.

#3x-2y = 18#
#color(white)("XXXX")#becomes (with #x=0#)
#3(0) -2y = 18#

#-2y = 18#

#y = -9#

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