Presentation on

The Straight Line

Presented to:

Ms. Maimuna AkterLecturerDepartment of Banking & InsuranceUniversity of Dhaka

Sadia Salam MimMD. Abir HasanTanvir MahmudMD. Rizwanul HoqueSadia Afrin Snigdha

Presented by

Now Presenting…

Sadia Salam Mim ID: 21-046

CARTESIAN CO-ORDINATE SYSTEM

The Cartesian system is a system that specifies each point uniquely in a plane by an ordered paired of numerical coordinates which are the signed distance of two perpendicular directed lines, measured in the same unit of length.

Straight LineA lineShortest DistanceIntegration of Algebra and Geometry

Rene Descartes (1596-1650)

Straight Lines

The shortest distance between two points is called straight line.

Now Presenting…

MD. Abir Hasan ID: 21-056

CO-ORDINATE SYSTEM

A point in the 2-dimensional plane is written as P(x,y)

x is called the abscissa and y is called the ordinate

x is the distance of point p from Y axis

y is the distance of point p from x axis

RECTANGULAR COORDINATE

Two mutually perpendicular lines intersect each other and divide the plane into four parts

Each part is called Quadrant The intersecting point, is known as

the origin The lines are called rectangular axis

Now Presenting…

Tanvir Mahmud ID: 21-014

Distance Between Two Points

Coordinates of Mid-point

The coordinate of a mid-point from the coordinates of any two points is given by the formula-

Now Presenting…

MD. Rizwanul Hoque ID: 21-084

Centroid of a TriangleThe Centroid of a triangle is the point of intersection of its three medians.

Each median bisects the side opposite to the vertex into two equal parts.

The coordinate of the triangle are-

Polar Coordinates

Polar coordinate system is used to determine the position of any point in the plane.

Now Presenting…

Sadia Afrin Snigdha ID: 21-072

SLOPE OF A STRAIGHT LINE One of the most important

properties of a straight line is in how it angles away from the horizontal. The concept is reflected in slope of the line.

A number used to represent the steepness of a line. It also indicates whether the line is tilted uphill or downhill. Slope is represented by the letter m.

M= Y2-Y1/X2-X1 =Difference of ordinates/difference of abscissas

GENERAL EQUATION OF A STRAIGHT LINE

An equation of the form ax+by+c=0 is called the general equation of the straight line.

Where a,b,c are constants and x,y are variables.

Any Query ?