Question
Find an equation for the line with the given properties. Perpendicular to the line -2x+3y=-1;y-intercept=4
Solution
4.5
(288 Votos)
Mateus
Mestre · Tutor por 5 anos
Resposta
To find the equation of a line that is **perpendicular** to the given line
and has a **y-intercept** of 4, follow these steps:---### Step 1: Find the slope of the given lineThe general form of a line is
. To determine the slope of the given line, rewrite it in slope-intercept form (
), where
is the slope.Start with:
Solve for
:
Thus, the slope of the given line is:
---### Step 2: Find the slope of the perpendicular lineThe slopes of two perpendicular lines are negative reciprocals of each other. If the slope of one line is
, then the slope of the perpendicular line is:
Substitute
:
So, the slope of the perpendicular line is:
---### Step 3: Write the equation of the perpendicular lineWe are told that the y-intercept of the desired line is 4. The slope-intercept form of a line is:
where
is the slope and
is the y-intercept.Substitute
and
:
---### Final Answer:The equation of the line is: