How do you graph #y= |x+4|# by plotting points?

1 Answer
Gaya3
Oct 11, 2017

see below...

Explanation:

graph{y=abs(x+4) [-14.33, 5.67, -1.52, 8.48]}

Pick #x#-values that put a negative inside the absolute value...

Like : (note how the #x# value changes... #-8, -6, -4, -2#...You can choose the pattern of your choice...)

  • #y=abs(-8+4)=abs(-4)=4->(-8,4)#
  • #y=abs(-6+4)=abs(-2)=2->(-6,2)#
  • #y=abs(-4+4)=abs(0)=0->(-4,0)#
  • #y=abs(-2+4)=abs(2)=2->(-2,2)#
  • #y=abs(0+4)=abs(4)=4->(0,4)#
  • #y=abs(2+4)=abs(6)=6->(2,6)#

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