After school, Bruce skateboards directly from school to a skate park and then from the
skate park to a movie theater. The skate park is 9 kilometers south of the school and the
movie theater is 12 kilometers east of the skate park. What is the straight-line distance
between the school and the movie theater?

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

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y

=

−

2

find the upper bound of the range.

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y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: