1. Use the function f(x)=-(x-2)' +1 to complete (a) through (h). a. Determine whether the graph of the parabola opens upward or downward.
b. Identify the vertex.
c. Determine the r-intercepts.
d. Determine the y-intercept.

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your