A. y = -2x -4 the line has a slope of -2. slope = rise over run rise = -2 and run = +1 m = -2/1 or -2 a is the only equation with the same slope, it is not asking for the whole equation to be the same so the y-intercept is not needed.
is obtained by multiplying and <span> </span>You basically create equivelant fractions for both 1/2 and 1/4 and multiply by each other. This way you get the same result always.