The equation of the curve shown below is yrasin(bx) + C. (a) Calculate the values of a and c. (b) Find the value of the first intersection with the negative X-axis. (This is asking you to solve y=0 since on the x-axis y is zero; use the same thing you were shown with the y1 and y2 in the calculator - where y2 which is the right hand side of the equation is zero - and graph it. Also, adjust your X-min and x-max so that only the negatve part of the x-axis is shown.