Equation Vertical Information Period Horizontal Information (give r- (give y-values) values) y = - COs(I) balance value = x-value of first maximum = amplitude = y = 8 - 5 cos() balance value x-value of 2nd min = maximum = maximum = -1 1 balance value reached on y-axis, amplitude = 3 function decreasing there y = 6 - 4 cos(Bx) maximum = In(2) r-value of first maximum = minimum= y = A+ 2 cos(x - D) maximum = 7 passes through (1,7) with A = _ and minimum = D =