The Y-Intercept and Slope, Respectively, of a Straight Line Are $6.4$

Multiple Choice

The y-intercept and slope, respectively, of a straight line are given. Find the equation of the line.
- $6.4$ and $- 1$

A) $y - 6.4 x = 1$
B) $y = 6.4 x - 1$
C) $y = 6.4 - x$
D) $y = 6.4 + x$