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Answer:
y=2x-8
Step-by-step explanation:
change in y\x
we only have one change in y\x so we take unknowns of y and x
hence:
(2,4) and (x,y)
still use change in y\x
y--4\x-2=2\1
hence:
you cross multiply
y+4=2x-4=
y=2x-8
that is the equation