# Math Is Fun Forum

Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

You are not logged in.

## #251 2021-02-01 15:24:01

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Neat work!

CG#148. Find the equation of the line which passes through the points of intersection of 3x + y = 4 and 2x - y + 2 = 0 and is perpendicular to the line x - 2y + 6 = 0.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #252 2021-02-03 05:17:57

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #253 2021-02-03 14:32:50

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Excellent!

CG#149. Find the length of the perpendicular from the point (1, 2) to the straight line 6x - 5y + 3 = 0.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #254 2021-02-04 07:23:15

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #255 2021-02-04 15:02:32

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Excellent!

CG#150. (2, 4) and (6, 16) are pairs of opposite vertices of a square. Find the equation of the diagonal of the square passing through (1, 1).

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #256 2021-02-05 06:26:35

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #257 2021-02-05 14:26:11

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Good work!

CG#151. A (x, y), B (4, 2), and C (6, -4) are three vertices of a triangle whose area is 10 square units. The vertex A lies on the line x - y = 4. Find the co-ordinates of A.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #258 2021-02-07 04:59:22

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #259 2021-02-07 15:03:30

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Neat work!

CG#152. A line passes through (2, 1) and (6, 3). Find a point common to this line and 3x + 2y + 2 = 0.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #260 2021-02-08 07:11:46

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #261 2021-02-08 14:10:24

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

CG#153. Find the equation of the line parallel to X-axis and passing through the point of intersection of the lines x + y - 2 = 0 and 2x + 3y = 1.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #262 2021-02-09 05:41:11

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #263 2021-02-09 15:10:08

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Neat work!

CG#154. Find the co-ordinates of the circumcenter of the triangle whose vertices are (6, 2), (4, 4), and (4, 0).

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #264 2021-02-10 05:24:20

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #265 2021-02-10 14:55:22

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Neat work!

CG#154. Find the area of the region bouded by the graphs |x| = 4 and |y| = 2.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #266 2021-02-11 05:50:46

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #267 2021-02-11 14:33:52

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Neat work!

CG#155. Given that the lines 2x + 3y = 1 and 3x - y = 2 are diameters of a circle. If the point (1, 2) lies on the circle, then find the radius of the circle approximately.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #268 2021-02-12 05:36:23

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #269 2021-02-12 14:44:28

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Excellent!

CG#156. A straight line passes through the point of intersection of 2x + y - 1 = 0 and x - 3y + 3 = 0 and is parallel to 4x - 2y + 3 = 0. Find its equation.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #270 2021-02-13 05:17:30

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #271 2021-02-13 15:04:47

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Excellent!

CG#157. Find the equation of the line concurrent with the lines x + y = 3 and 2x + y = 5 and perpendicular to the line joining the points (4, 6) and (2, 2).

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #272 2021-02-14 06:46:39

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #273 2021-02-14 14:37:06

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Neat work!

CG#158. Find the area of the triangle formed by the lines whose equations are 2x + y = 3, x - y = 1, and 3y - x = 4.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

## #274 2021-02-15 05:51:48

irspow
Member
Registered: 2005-11-24
Posts: 1,055

### Re: Coordinate Geometry

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

## #275 2021-02-15 14:40:49

ganesh
Registered: 2005-06-28
Posts: 33,015

### Re: Coordinate Geometry

Hi,

Excellent!

CG#159. A line passes through the midpoint of the line joining the points (-6, -8) and (-10, 12) and has a slope 2/3. Find the equation of the line.

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline