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20.07.2019 •
Mathematics
Awalking path across a park is represented by the equation y = –2x - 7. a new path will be built perpendicular to this path. the paths will intersect at the point (-2, –3). identify the equation that represents the new path.
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Ответ:
Ответ:
Step-by-step explanation:
Point slope intercept form:
The equation of lien is given by:
where, m is the slope and
is the point on the line.
As per the statement:
A walking path across a park is represented by the equation
On comparing with y =mx+b we have;
It is given that: A new path will be built perpendicular to this path.
By definition of perpendicular:
then;
⇒
, where
is the slope of the new path.
Since, the new path will intersect at the point (-2, –3).
Substitute the given values in [1] we have;
⇒![y+3 = \frac{1}{2}(x+2)](/tpl/images/0111/9248/1461b.png)
⇒![y+3 = \frac{1}{2}x+1](/tpl/images/0111/9248/6e59e.png)
Subtract 3 from both sides we have;
Therefore, the equation that represents the new path. is,![y= \frac{1}{2}x-2](/tpl/images/0111/9248/93732.png)
Ответ: