Point slope:
y-y1= m(x-x1) <- we will plug all the given information into this formula.
We have the slope, which equals m. m= 5
y-y1= 5(x-x1)
-4= x1 and 0= y1
y-0=5(x-(-4)
Two negatives equal a positive.
y-0=5(x+4)
Combine like terms.
y= 5x + 20
We could talk this one step further and convert it to standard form.
Ax+By= C
y=5x+20
Subtract 5x on both sides.
-5x+y= 20 <- this is standard form.
Here's a simple way to check to see if this is correct. Plug in x and y.
-5(-4)+0= 20
20+0= 20; 20=20
I hope this helps!
~kaikers
