Select each statement that is true when you graph y=3cos(2x+pi)+4

Graph the equation by plotting point x=2

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)