Question Answers

The temperature of a liquid can be measured in Kelvin units as x degree K or in Fahrenheit units as y°F. The relation between the two system of measurement of temperature is given by the linear equation y = 9/5 ( x – 273 ) + 32 Write the linear equation such that each point [...]

The linear equation that converts Fahrenheit (F) to Celsius (C) is given by the relation: C= 9/5F−160 (i) If the temperature is 86F, what is the temperature in Celsius? (ii) If the temperature in 35 C, what is the temperature in Fahrenheit? (iii) If the temperature is 0 C, what is the temperature in Fahrenheit [...]

Draw the graph of the linear equation 3x + 4y = 6. At what points, does the graph cut the x-axis and the y-axis? does the graph cut the x-axis and the y-axis? Draw the graph of the linear equation 3x + 4y = 6. At what points June 29, 2021 Category: Chapter 4 - [...]

The following observed values of x and y are thought to satisfy a linear equation. Write the linear equation. Draw the graph, using the values x and y as given in the above table. At what points, the graph of the linear equation (i) cuts the X-axis? (ii) cuts the Y-axis? The following observed values [...]

Show that the points A (1,2), B ( – 1, – 16) and C (0, – 7) lies on the graph of the linear equation y = 9x – 7. - 16) and C (0 - 7) lies on the graph of the linear equation y = 9x - 7. 2 B(-1 Show that the [...]

Let y varies directly as x. If y = 12 when x = 4, then write a linear equation. What is value of y when x = 5 ? Let y varies directly as x. If y = 12 when x = 4 then write a linear equation. What is value of y when x [...]

For what value of c, the linear equation 2x + cy = 8 has equal values of x and y for its solution? For what value of c the linear equation 2x + cy = 8 has equal values of x and y for its solution? June 29, 2021 Category: Chapter 4 - Linear Equations [...]

Find the solution of the linear equation x+2y=8 which represents a point on Find the solution of the linear equation x+2y=8 which represents a point on June 29, 2021 Category: Chapter 4 - Linear Equations in Two Variables , Maths , NCERT Class 9 ,

How many solutions of the equation 2x + 1 = x – 3 are there on the Cartesian plane? How many solutions of the equation 2x + 1 = x – 3 are there on the Cartesian plane? June 29, 2021 Category: Chapter 4 - Linear Equations in Two Variables , Maths , NCERT Class [...]

If the point (3, 4) lies on the graph of 3y = ax + 7, then find the value of a. 4) lies on the graph of 3y = ax + 7 If the point (3 then find the value of a. June 29, 2021 Category: Chapter 4 - Linear Equations in Two Variables , [...]