If two pairs of corresponding sides and one pair of corresponding angles are congruent then the triangles are congruent by side angle side

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Find the cosine function that is represented in the graph.

Which of the following is the result of expanding the series