y=2x and y=4x+12
the choices of answers are( 4,8 ) (-4,-8) (-6, -12)
Since y = 2x and y = 4x + 12:
Setting these equal to each other: y = y ---> 2x = 4x + 12
---> -2x = 12
---> x = -6
Since y = 2x: x = -12
