Question 1074091
Neglectiong the {{{ 5 }}} for now, here's the plot of
{{{ 2*sin( x - pi ) }}}
{{{ graph( 400, 400, -7, 7, -3, 3, 2*sin( x - pi ) ) }}}
Here is the plot of
{{{ 2*cos( x + pi/2 ) }}}
{{{ graph( 400, 400, -7, 7, -3, 3, 2*cos( x + pi/2 ) ) }}}
The graphs are the same, so
{{{ y = 2*sin( x - pi ) + 5 }}} and
{{{ y = 2*cos( x + pi/2 ) + 5 }}}