A line joining a vertex of a triangle to the mid point of the opposite side is called
Median
Centroid
Midpoint
None of these
The point of intersection of the lines 3x+4y = 33 and 2y = x-1 is.
(3,7)
(-3,7)
(7,3)
(7,-3)
Equation of the straight line passing through the point (3,-2) with gradient -5/8 is.
8y = -5x-1
8y = -5x+1
8y = 5x-1
8y = 5x+1
The equation of the line joining the points (1,4) and (3,10) is.
y = 3x-1
y = 3x+1
y = -3x-1
The gradient of a line which is perpendicular to one with gradient 2 is.
-2
1/2
-1/2
1
Which one of the points A(5,2), B (6,-3) and C(4,7) is the midpoint of the other two?
A (5,2)
B (6,-3)
C (4,7)
Two lines with gradient m1 and m2 are perpendicular if.
m1m2 = -1
m1m2 = 1
m1- m2 = -1
m1/m2 = -1
The length of the line segment joining the points (2a,a) and (10a, -14 a) is.
17 a2
17a
15 a2
The point P(x,y) lies on the straight line joining A(3,0) and B (5,6). Find expressions for the gradients of AP and PB.
The equation of the line through the point (1,1) which is perpendicular to the line 2x-3y=12 is.
3x - 2y = 5
3x + 2y = 5
3x - 2y = -5
3x+ 2y = -5
