The original function is
Write as
or
First solve the case .
(Subtract 3 from each side)
(Additive inerse property:
)
(Additive identity property:
)
(Add:
)
Apply Division proparty of inequality: If a = b than
(Divide each side by 7)
(Cancel commen terms)
(Divide:
)
Next solve the casev .
(Subtract 3 from each side)
(Additive inerse property:
)
(Additive identity property:
)
(Subtract:
)
Apply Division proparty of inequality: If a = b than
(Divide each side by 7)
(Cancel commen terms)
To graph the solutions set, first draw a number line.
\Draw a heavy line between -1.8 and 1.
\Since -1.8 and 1 are included in the solution set, draw a solid at -1.8 and 1. \ \
\The solution set is .