Which expression is equivalent to 46 ⋅ 4−8? 1 over 4 to the 2nd power 1 over 4 to the 14th power 42 414

How do i do this activity, is appreciated

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?

Sketch one cycle if the cosine function y=2cos2theta