Write an Equation for the Line Described $\mathrm { m } = - 8$

Multiple Choice

Write an equation for the line described. Give your answer in slope-intercept form.
- $\mathrm { m } = - 8$ , through $( - 4,9 )$

A) $8 x + y = 23$
B) $y = 8 x - 21$
C) $y = - 8 x - 23$
D) $y = - 8 x + 30$