Question

what is the slope of a line that is perpendicular to 6x+3y=-9?

Answer 1

first find the slope of this line
3y=-9-6x
y=-2x-3
y=mx+c
m=slope
c=intercept on y axis
m (slope) =-2
let the line perpendicular to this have a slope of a
so a *(-2)=-1
a=1/2
slope of line perpendicular to this line =1/2 or 0.5

Answer 2

if two lines are perpendicular then the product of their slopes is -1

Answer 3

want to help me with rest?

Answer 4

yeah sure

Answer 5

what is the equation of the line that passes through the points (1,2/3) and (-1,-1)?