I really need help on this one

A. x²+x-11

Step-by-step explanation:

Take one of the x values and try them out on all formulas to see if the expected output occurs.

Already with x=2 you get

-5, 28, -3, 27 so you know that only the first formula works.

yes

yes yes yes

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.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: