Find an Equation in Slope-Intercept Form (Where Possible) for the Line

Multiple Choice

Find an equation in slope-intercept form (where possible) for the line.
-The line with y-intercept -10 and perpendicular to x + 2y = 4

A) $y=-2 x-10$
B) $y=-\frac{1}{2} x+1$
C) $y=\frac{1}{2} x-10$
D) $y=2 x-10$