Answer:
-1/2
Explanation:
The standard form of writng the equation of a line is expressed as y = mx+b
m is the slope
Given the equation x + 2y = 6
First we need to rewrite in standard form by making y the subject of the formula;
x + 2y = 6
2y = -x+6
y = -1/2 x + 6/2
y = -1/2 x + 3
Compare with y = mx+b
mx = -1/2 x
cancel out x from both sides to have;
m = -1/2
Hence the slope of the line whose equation is x+2y = 6 is -1/2
