Question 248844
Use the y=mx+b form
m=the slope
b=the y-intercept
11.) 4 x + y = 1
4x-4x+y=-4x+1
y=-4x+1
Slope =-4
y-intercept=1
12.) x - y = 6
x-x-y=-x+6
-y=-x+6
{{{(-1)(y)/(-1)}}}={{{((-x/-1)+(6/-1))}}}
y=x-6
so, 
slope=1
y-intercept=-6
14.) -12 x - 4 y = 2
-12x+12x-4y=12x+2
-4y=12x+2
{{{(-4x/-4)}}}=(12x/-4)+(2/-4)
y=-3x-1/2
so,slope=-3
y-intercept=-1/2
15.) 2 x + 5 y = -10
2x-2x+5y=-2x-10
5y=-2x-10
{{{(5y/5)}}}={{{(-2x/5)-(10/5))}}}
y={{{(-2/5)x-2)}}}
so, 
slope =-2/5 and y-intercept=-2
16. -x - 10 y = 20 
-x+x-10y=+x+20
-10y=x+20
{{{(-10y/-10)}}}={{{(1x/-10)+(20/-10)}}}
y=-1/10)x-2
so,
slope=-1/10
y-intercept=-2