Slope = - 4, passing through (7, 4)

I am guessing you want the equation, so here we go.

the equation of a line is:

y = mx + c

To find c, plug in the given

y = 4

x = 7

m = - 4

4 = - 4 (7) + c

4 = - 28 + c

take - 28 to the other side

4 = - 28 + c

+28 + 28

32 = c

equation of this line:

y = - 4x + 32