1) What's the midpoint of segment AB, if A=(3;4) and B=(1;-2)? a) M=(4;2) b) M=(2;1) c) M=(-2;-6) d) M=(-2;-1) 2) What are the coordinates of vector AB, if the A=(1;5) and B=(-3;4)? a) (4;1) b) (2;0.5) c) (-4;-1) d) (-2;9) 3) What is the scalar product of vetcor a(3;-1) and vector b(1;3)? a) 0 b) 6 c) -6 d) 3 4) What's the slope of the straight line e: y=3x+1? a) m=1 b) m=3 c) m=4 d) m=2 5) What is the normal vector of a straight line e: 3x-5y=12 a) n(3;-5) b) n(-5;3) c) n(12;3) d) n(5;3) 6) Which line is perpendicular to the line e: 2x+4y=5? a) f: 2x+4y=10 b) g: 4x+2y=7 c) h: 4x-2y=8 d) -4x-2y=7 7) What is the intersection point P of lines e: x+y=4 and f: x-y=2? a) P(2;2) b) P(1;3) c) P(3;1) d) P(5;3) 8) Find the equation of the circle k if the centre is C(-3;1) and the radius is 5. a) k:(x+3)2+(y-1)2=25 b) k:(x-3)2+(x+1)2=25 c) k:(x+3)2+(y-1)2=5 d) k:(x-3)2+(x+1)2=5 9) Find the coordinates of the sum of vector u(3 ; -4) and vector v(-1 ; 8). a) (4;12) b) (4;-12) c) (2;4) d) (-2;-4)

Coordinate Geometry

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