Question
What is an equation of the line that passes through the point (2,-2) and is perpendicular to the line x-5y=20
Solution
4.6
(247 Votos)
William
Profissional · Tutor por 6 anos
Resposta
To find the equation of the line that passes through the point
and is perpendicular to the line
, we need to follow these steps:1. Find the slope of the given line
.2. Find the slope of the line perpendicular to the given line.3. Use the point-slope form of a linear equation to find the equation of the perpendicular line.Step 1: Find the slope of the given line
.To find the slope of the given line, we need to rewrite it in slope-intercept form, which is
, where
is the slope and
is the y-intercept.Rearranging the given equation, we get:
The slope of the given line is
.Step 2: Find the slope of the line perpendicular to the given line.The slope of a line perpendicular to another line is the negative reciprocal of the slope of the original line.The negative reciprocal of
is
.Step 3: Use the point-slope form of a linear equation to find the equation of the perpendicular line.The point-slope form of a linear equation is
, where
is a point on the line and
is the slope.Substituting the point
and the slope
into the point-slope form, we get:
Therefore, the equation of the line that passes through the point
and is perpendicular to the line
is
.