Question

Can someone write the point slope equation

Answer 1

okay so, first what is the slope of the line? you have stated it is -1.

so now we have a point on the line (x1,y1) = (4, -9), so now we can use:

y-y1 = m(x-x1)

y - (-9) = -1 (x - 4)

y + 9 = -x + 4

y = -x + 4 -9

y = -x -5

Let's check. If x = 4, then

y = - (4) -5 = -9

seems to be correct