what is inequality that represents the graph in the box?

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1 Answer
Sep 20, 2017

#3x-y>=1#

Explanation:

Points are #(1,2) and (0,-1)#
Slope #m=(y_2-y_1)/(x_2-x_1)=(-1-2)/(0-1)=3#
Equation of Line is
#y-y_1=m(x-x_1)#
#y-2=3(x-1)#
#y-2=3x-3#
#3x-y-1=0#

inequality is
#3x-y-1>=0#
or
#3x-y>=1#
Because in Graph value of x is increasing and value of y is decreasing.