2017-04-10 SFXC F.5C Linear Programming 02
Q.1 What do x and y in the expression 4x-3y stand for? Q.2 Drag P. When the line is translated upwards (downwards), what is the changes in the value of 4x-3y? Q.3 What is the slope of the red line? Q.4 Is it true to say that translate the line ax + by = c with positive slope upwards, the value of c will decrease? Before answering Q.4, click the check box -4x+3y. Q.5 Is the purple line having positive slope? Q.6 Drag Q. What is the change in the value of -4x+3y? Q.7 What is your answer to Q.4?