You’re looking for the choice for which x^2 + y^2 is greater than 34. Use your
calculator. In (A) x^2 + y^2 = 37. So it looks like the answer is (A). If you have
lots of time, you can check the other answer choices, just to be sure. In
(B) x^2 + y^2 = 32.5. In (C) x^2 + y^2 = 26.5. In (D) x^2 + y^2 = 32. And in (E) x^2 + y^2 =
34 . Only (A) is greater than 34.48 . B
You don’t actually need to find the inverse function to answer this
question if you remember that the slopes of inverse functions are
reciprocals. The slope of the given f(x) = 3x – 1 is 3, so the slope of f−1(x) is
The slope of a line perpendicular to f(x) will have a slope that’s the
negative reciprocal of 3, or So and and therefore
49 . A
The question is asking, in other words, for how many positive integer
values of x does y turn out to be a positive integer?The expression will be positive whenever 4x is greater than