X+1=y+1
X-Y= 0
Hope this helped you
9 < x
this means that x is a larger number than 9
9 = x
this means that x is equal to 9
93 is 60 percent from the original price.
The discount reduces the original price by 40 percent.
Intersection
Where the graph line matches with which column of graph...... take a line from that place to the axis to identify value on that point of intersection
Hope it helped !!
