Question 163640
Y=mX+b
7=4*1+b
b=4+7
b=11
Y=4X+11
 {{{ graph( 300, 200, -6, 5, -10, 12, 4x +11) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 12, 4x +11).