X/9 - 7 is the answer. note x/9 is in fraction form
The First is sec^2(x). Second is 2sec^2tanx. From that you get 2[2sec^2xtan^x+sec^4x]
the coordinates of point f is B)7,-5
To find the are of a square, we simply square the value of a side
so..
Area = 25 square units
Answer: y-7 = 4(x+3), choice B
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Point slope form is generally
y-y1 = m(x-x1)
we have m as the slope and (x1,y1) as the point this line goes through. In this case,
m = 4
(x1,y1) = (-3,7) so x1 = -3 and y1 = 7
So,
y-y1 = m(x-x1)
y - 7 = 4(x - (-3))
y - 7 = 4(x + 3)
which is why choice B is the answer
