﻿ Quiz

1. The point (2,1) is on which line?

a) 2X-3Y=6
b) 3X-2Y=4
c) X+2Y=7
d) X=Y

2. Parallel lines all have the same slope.  But if a line has a slope of 1/2 what is the slope of the line perpendicular?

a) 3
b) 1/4
c) -2
d) -1/2

3. If (1,k) is on the line 2X-3Y=-4 then K must be equal to

a) 3
b) 1
c) 2
d) -2

4. X+2Y=6 intersects the X axis at

(0,6)
(6,0)
(0,3)
(3,0)

5. ¦ab¦ means the length of the line segment joining the point a and b.  If a(1,2) and b(5,5) what is ¦ab¦?

25
5
4
3

6. The image of (2,1) under central symmetry in the origin or So(2,1)?

(-2,1)
(-2,2)
(-2,-1)
None of the above

7.  If x(1,6), y(-3,-1) and z(2,-2) are vertices(points) of a triangle.  Find what type of triangle it is? (Clue - Calculate lengths)

Isoceles
Equilateral
Right angled
Scalene

8.  To verify a line is perpendicular to another you multiply their slopes together and this should be -1.

True
False

9. Find x if (x,1) is equidistant (same distance from) from (1,-4) and (-2,0)?

3.5
7
11
19

10. What is the equation of the sketched line X - Y = 4
4X +Y = 0
X - 4Y= 0
None of the above