Determine the equation of the axis of symmetry of a parabola that passes through points (2, 7) and (4, 7).
a) x = -2
b) x = 3
c) x = -3
d) x = 1

i did it myself and i got 4.2 (b) hope its right

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: