Question: what is the equation of a line that is perpendicular to y=3x-2?
Answer: The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and b b is the y-intercept. Using the slope-intercept form, the slope is 3 3 . The equation of a perpendicular line to y=3x+2 y = 3 x + 2 must have a slope that is the negative reciprocal of the original slope.