Step-by-step explanation
Step 1
to graph a line, yo will need at least 2 points, also if you have the equation of the lines, you cand easily find two poinst
to find a poins just replace the x value( independent variable) , then calculate and you will get the output value( dependent variable)
s0
Step 1
a)at x= 4
Hence, the coordinate is (4,-2)
b)
at x= 8
therefore , the coordinate 2 is (8,3)
Step 2
now, graph the lines
to do that, draw a lines that passes trought the points we got in the previous step
so
I hope this helps you