Solve each system by elimination.

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2) y=-1       4)y=-1

Step-by-step explanation

    4x+8y=20

+  -4x+2y=-30

      10y=-10

isolate y by dividing 10 on each side

     y=-1

    -6x+5y=1

+    6x+4y=-10

    9y=-9

y=-1

choice b is correct

step-by-step explanation:

we have been given the following system of inequalities;

we are required to graph the solution to the system of inequalities. using a graphing tool, the graph of the system is as shown in the attachment. the continuous line represents the graph of while the dotted line represents .

step-by-step explanation:

no of data

divide by no of mode