Click through the graphs and select the one that could represent the relationship between the cost, c, of a call and the time, t, for the cell phone plan shown below.
time in hours 0 1 2
3
cost in dollars 10 13 16
19
20
18
16
Cost in dollars
ܩ ܣ ܘ ܘ ܀ ܘ ܗ ܕ
Time in Hours

ege

step-by-step explanation:

egge

99

step-by-step explanation:

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:

it would open into a square depending on the type of envelope i’m not sure about the second part