please class9ncert ch4formulas
Here ‘a’ is called coefficient of x, ‘b’ is called coefficients of y and c is called constant term.
Eg. 6x + 2y + 5 = 0, 5x – 2y + 3 = 0 etc.
SOLUTIONS OF LINEAR EQUATION
Answers
although i did not find any formulas in ch4 of linear equation in two variables, but here are some pointers that will help you get through the chapter when you are doing revision:
1. An equation of the form ax + by + c = 0, where a, b and c are real numbers, such that a and b are not both zero, is called a linear equation in two variables.
2. A linear equation in two variables has infinitely many solutions.
3. The graph of every linear equation in two variables is a straight line.
4. x = 0 is the equation of the y-axis and y = 0 is the equation of the x-axis.
5. The graph of x = a is a straight line parallel to the y-axis.
6. The graph of y = a is a straight line parallel to the x-axis.
7. An equation of the type y = mx represents a line passing through the origin.
8. Every point on the graph of a linear equation in two variables is a solution of the linear equation. Moreover, every solution of the linear equation is a point on the graph of the linear equation.
hope this helps you! pls mark as brainliest!!
Answer:
Volume of a cuboid = (l*b*h)