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In the rectangular coordinate system shown, points A and E
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15 Apr 2018, 08:31
15 Apr 2018, 08:31
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#GREpracticequestion In the rectangular coordinate system shown.jpg [ 23.58 KiB | Viewed 7097 times ]
In the rectangular coordinate system shown, points A and E lie on the x-axis, and points B and D lie on the y-axis. Point C is the midpoint of the line AB, and point F is the midpoint of the line DE.
Quantity A |
Quantity B |
The slope of the line AB |
The slope of the line DE |
A. The quantity in Column A is greater
B. The quantity in Column B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Re: In the rectangular coordinate system shown, points A and E
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23 Apr 2018, 01:50
23 Apr 2018, 01:50
1
In the line \(AB\) by visualization point \(A\) is \((x,0)\).
and point \(B\) is \((0,y)\)
Since the given point \(c(-3,5)\) is the mid-point of the line we can make a eqn
\(x + 0/2 = -3\)
or, \(x = -6\)
\(\frac{y + 0}{2} = 5\)
therefore \(y = 10\)
For line \(AB\) \(A(-6,0) B(0,10)\)
Now, we can similarly calculate the value of point \(D\) and \(E\) in the line \(DE\)
Point \(D(0,y)\) and point \(E(x,0)\)
Hence, \(\frac{0+x}{2} = 3 or x = 6\)
\(\frac{y+0}{2} = -5\)
or, \(y=-10\)
For line \(DE\) D(0,-10) and \(E(6,0)\)
when we have two points we can calculate the slope for each line AB and DE we have three set of points so we can calculate slope
For the line \(AB\) slope \(= \frac{10-0}{0-(-6)} = \frac{10}{6} = \frac{5}{3}\)
For the line \(DE\) slope \(= \frac{0-(-10)}{6-0} = \frac{5}{3}\)
option c
and point \(B\) is \((0,y)\)
Since the given point \(c(-3,5)\) is the mid-point of the line we can make a eqn
\(x + 0/2 = -3\)
or, \(x = -6\)
\(\frac{y + 0}{2} = 5\)
therefore \(y = 10\)
For line \(AB\) \(A(-6,0) B(0,10)\)
Now, we can similarly calculate the value of point \(D\) and \(E\) in the line \(DE\)
Point \(D(0,y)\) and point \(E(x,0)\)
Hence, \(\frac{0+x}{2} = 3 or x = 6\)
\(\frac{y+0}{2} = -5\)
or, \(y=-10\)
For line \(DE\) D(0,-10) and \(E(6,0)\)
when we have two points we can calculate the slope for each line AB and DE we have three set of points so we can calculate slope
For the line \(AB\) slope \(= \frac{10-0}{0-(-6)} = \frac{10}{6} = \frac{5}{3}\)
For the line \(DE\) slope \(= \frac{0-(-10)}{6-0} = \frac{5}{3}\)
option c
Re: In the rectangular coordinate system shown, points A and E
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10 Sep 2018, 10:20
10 Sep 2018, 10:20
2
not going into too much mathematical details:
points C & F are midpoints
both the lines are increasing
so they are parallel and hence they have th same positive slopes: 5/3.
points C & F are midpoints
both the lines are increasing
so they are parallel and hence they have th same positive slopes: 5/3.
