Question

Approximately what angle does the line y = 1 2 x make with the positive x-axis? A) 26.6° B) 27.5° C) 29.5° D) 31.7°

Answer 1

A) 26.6

Explanation:

Do 1/2 and you get 0.5

Use tan-(0.5) to get 26.565

Answer 2

A) 26.6°  I'm assuming that there's a typo in the problem and that the equation is y = 1/2 x. If that's the case, then the tangent of the desired line is 1/2, and the arc tangent of 0.5 is 26.56505118 which rounds to 26.6° which in turn nicely matches option "A".