The value of Tan 3.4 is 0.059410947 rounded off to four decimal places would equal to 0.0594, letter B. This is your answer if your calculator is in the degree mode.
Tangent or Tan is one of the trigonometry functions. It represents TOA in the sohcahtoa mnemonic which means Tan = Opposite / Adjacent
There must be 2 lines on every plane because you need a y-axis and an x-axis.
3. 4y-3
because 1/3*12y - 1/3*9 = 4y - 3
2 feet I think, I could be wrong