Question 370215
Write the equation in intercept form:
2x + y = 3, or 2x/3 + y/3 = 1, or x/1.5 + y/3 = 1.  Thus the x-intercept is 1.5 and the y-intercept is 3.  Incidentally these are also the lengths of the legs of the right triangle.  By the Pythagorean theorem, the hypotenuse has length
{{{sqrt(1.5^2 + 3^2) = sqrt(11.25) = 3.35}}}, rounded to the nearest hundredth.