Find the slope of line passing through the two points, (1, -4) and (5, -8).

m=-1

Step-by-step explanation:

So our equation to find the slope is:

       y₂-y₁

m=  

       x₂-x₁

(1,-4) is our first coordinate pair, which means that we will put them like this:

1=x₁

-4=y₁

(5,-8) is our second coordinate pair, which means that we will put them like this:

5=x₂

-8=y₂

We can substitute these numbers into the original equation:

     -8-(-4)

m=

       5-1

Then we can simplify::

-8+4     -4

= =  -1

 4         4

m=-1

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step-by-step explanation:

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4