Question 391179
-x+2y<=4  first, solve for y

Since -x does not contain the variable to solve for, move it to the right-hand side of the inequality by adding x to both sides.
2y<=x+4

Divide each term in the inequality by 2.
(2y)/(2)<=(x)/(2)+(4)/(2)

Simplify the left-hand side of the inequality by canceling the common factors.
y<=(x)/(2)+(4)/(2)

Combine the numerators of all expressions that have common denominators.
y<=(x+4)/(2)



Then for x:

-x+2y<=4

Since 2y does not contain the variable to solve for, move it to the right-hand side of the inequality by subtracting 2y from both sides.
-x<=-2y+4

Multiply each term in the inequality by -1.
-x*-1>=-2y*-1+4*-1

Multiply -x by -1 to get x.
x>=-2y*-1+4*-1

Simplify the right-hand side of the inequality by multiplying out all the terms.
x>=2y-4

Your points to graph=

(-4,0) (-2,1)  (0,2)  (1,2.5)(4,4)...and so on.

Your grahph should appear with a line going from bottom left to upper right