the slope of the line below is - 8/7. write a point-slope equation of the line using the coordinates of the labeled point.
a. y — 4 = 8/7 ( x — 4 )
b. y + 4 = 8/7 ( x + 4 )
c. y — 4 = — 8/7 ( x — 4 )
d. y + 4 = — 8/7 ( x + 4 )
