SOLUTION: a triangle, STR ... s=(-4,7) t= (4,7)r=(0,1), and they're asking me to write an equation that contains the median of triangle RST from S to side RT. HELP!!!!!!!!!!!!!!!!!!!!!!!!!
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-> SOLUTION: a triangle, STR ... s=(-4,7) t= (4,7)r=(0,1), and they're asking me to write an equation that contains the median of triangle RST from S to side RT. HELP!!!!!!!!!!!!!!!!!!!!!!!!!
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Question 322502: a triangle, STR ... s=(-4,7) t= (4,7)r=(0,1), and they're asking me to write an equation that contains the median of triangle RST from S to side RT. HELP!!!!!!!!!!!!!!!!!!!!!!!!! Answer by Edwin McCravy(20086) (Show Source):
A median is a line segment drawn from a vertex to the midpoint of
the opposite side.
So first let's find the midpoint of the side RT, using the
midpoint formula:
Let's call that point M for "Midpoint". So we plot M(2,4):
Now we draw the line segment SM, which is the median. I'll draw it
in red:
and we want to find the equation of the line that contains that median.
That is, we want to find the equation of the line through the points
S(-4,7) and M(2,4). That's the red line:
Use the slope formula:
Use the point-slope formula:
Edwin
