Question

Graph the system of inequalities
x+3y< or equal to 9,
3x+y< or equal to 9,
x> or equal to 0
y> or equal to 0

Answer 1

its quite dificult without a graph, but because of the last two you know you will only be in the positive quartile. for the first two, just put in random values for x and y (i normally start with 0) and see what comes out. remember treat inequalites as equations untill the very last step

Answer 2

i did
x+3y< or equal to 9
0+3y< or equal to 9
and came out with y< or equal to 3
is that right so far?

Answer 3

yep, when inputting 0 for x :)

Answer 4

now input 0 for y