ROLLERCOASTER At a theme park, a person must be a certain height to ride a rollercoaster. A person must be h inches tall, plus or minus 1.5 inches. Anoki says the absolute value expression
11.5 -- h| represents an acceptable height. David says the absolute value expression h - 1.51
represents an acceptable height. Who is correct? Explain.
David is correct. Because a person's height will be greater than 1.5 inches, Anoki's
expression will always result in a negative value, which is not a possible height.
Both Anoki and David are correct. Both expressions are equivalent to the difference
between the measurements and are always positive because they give the absolute
value of the difference.
David is correct. Because a person's height will be greater than 1.5 inches, David's
expression will always result in a positive value.
Both Anoki and David are correct. Both expressions are equivalent to the sum of the
measurements and are always positive because they give the absolute value of the
difference.