The number of cups of sugar (y) in a recipe increases by 2 for every increase of 4 cups of flour (x).

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.