Question

Gradient of a straight line that is perpendicular to y = 4x + 2

Answer 1

If a line's slope is $\frac{a}{b}$, the slope of the perpendicular line is $-\frac{b}{a}$
in this case, the given line has a slope 4, which is 4/1, so the perpendicular line has a slope/gradient $-\frac{1}{4}$