turkey-yks 2020 Q37

turkey-yks · Other · yks-ayt Straight Lines & Coordinate Geometry Geometric Figure on Coordinate Plane
In the rectangular coordinate plane, a square $ABCD$ with two vertices at $A(0, a)$ and $B(0, b)$ is given. The vertex $C$ of square $ABCD$ lies on the line $y = \frac{x}{3}$. If $a + b = 15$, what is the sum of the coordinates of point $D$?
A) 14
B) 18
C) 21
D) 24
E) 27 
In the rectangular coordinate plane, a square $ABCD$ with two vertices at $A(0, a)$ and $B(0, b)$ is given. The vertex $C$ of square $ABCD$ lies on the line $y = \frac{x}{3}$. If $a + b = 15$, what is the sum of the coordinates of point $D$?\\
A) 14\\
B) 18\\
C) 21\\
D) 24\\
E) 27
Paper Questions
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