# If the slope of the line y=4x+1 is multiplied by -1/2 how do you write the equation of the new line?

$y = - 2 x + 1$
$y = 4 x + 1 \text{ "->" } y = \left(- \frac{1}{2} \times 4\right) x + 1$
$y = - 2 x + 1$