Straight line graph. Vertical /Horizontal lines have equations of the form . Straight line
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Category: SAT Math
Factorisation
Factorisation processes we applied bracket to take common term out. Also we apply difference of square of variable. Hence we reduce no of terms in expression. Therefore factorisation and expansion are reverse process. Factorisation
Linear inequation
Solve linear inequalities is like solving linear equations with with inequality sign. Due to inequality sign its graph is area. Also it give dark line and dotted line. Linear inequation
Direct and Inverse Variation
Direct or Indirect Variation, where when one of the variables increases, the other one decreases. Joint Variation, where more than two variables are related directly. Combined Variation, which involves a combination of direct or joint variation, and indirect variation. Direct and indirect variation
Simultaneous Equation
The simultaneous equations are solve by the elimination. These equations are also solve by substitution as well as graphic method. Due to variable solution give coordinate. Simultaneous eq
Angle properties
The total angle at a point is 360 ° w +x+y+z=3600. 2. The total angle on a straight line is 180 ° In the diagram, x+y+z=1800 3. When two straight lines cross, vertically opposite angles are equal. In the diagram, • angles a and c are equal, • angles b and d are equal. Angle […]
Exterior angle of Polygon
Exterior Angles of a Polygon add up to 360°. In other words the exterior angles add up to one full revolution. Exterior angle
Conversion of Co-ordinates
Convert from Polar to Cartesian. When we know a point in Polar Coordinates (r, θ), and we want it in Cartesian Coordinates (x,y) . we solve a right triangle with a known long side and angle: Answer: the point (13, 22.6°) is almost exactly (12, 5) in Cartesian Coordinates. Polar to cartesian
Complex Number
Conversion from Polar to Rectangular Form Complex and vice versa. r cos Θ = x , r sin Θ = y Conversion of polar to Rectangular
Sigma notation
Sigma Notation. Σ This symbol (called Sigma) means “sum up”. I love Sigma, it is fun to use, and can do many clever things. So Σ means to sum things up Sigma notation
