Question

Find the slope of the line 2x+7y+9 = 0 . ​

Answer 1

Answer:

Step-by-step explanation:

7y=-2x-9

y=$\frac{2x-9}{7}$

y=-$\frac{2}{7}$x-$\frac{9}{7}$

now comparing the equation with equation of straight line

y=mx+c

we get

m=-$\frac{2}{7}$

Answer 2

Answer:

-2/7

Step-by-step explanation:

y= mx+c

7y= -9 - 2x

y= -9/7 - 2x/7

The Slope of this equation is -2/7

And the Slope of a line perpendicular to this line will be 7/2.