Write the equation for the line given the information below. Leave your answer in point-slope form (when possible).
y - yı = m(x - x1)

38. slope = - containing the point (2,3).

39. containing the points (1, -3) and (-5,2).

40. slope = 0 and containing the point (4,3).

41. perpendicular to the line in #38 and containing the point (3, 4).

42. passing through the point (-4,2) with an undefined slope.

43. passing through the point (2,8) and parallel to the line y = 5/6x - 1.

Ineed with a, b, c, d, and e on the long answer

Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.