# Solution - Graph of a Linear Equation in Two Variables

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ConceptGraph of a Linear Equation in Two Variables

#### Question

If the work done by a body on application of a constant force is directly proportional to the distance travelled by the body, express this in the form of an equation in two variables and draw the graph of the same by taking the constant force as 5 units. Also read from the graph the work done when the distance travelled by the body is

(i) 2 units (ii) 0 unit

#### Solution

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In countries like USA and Canada, temperature is measured in Fahrenheit, whereas in countries like India, it is measured in Celsius. Here is a linear equation that converts Fahrenheit to Celsius:-

F=(9/5)C+32

(i) Draw the graph of the linear equation above using Celsius for x-axis and Fahrenheit for y-axis.

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(iii) If the temperature is 95°F, what is the temperature in Celsius?

(iv) If the temperature is 0°C, what is the temperature in Fahrenheit and if the temperature is 0°F, what is the temperature in Celsius?

(v) Is there a temperature which is numerically the same in both Fahrenheit and Celsius? If yes, find it.

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Solution for concept: Graph of a Linear Equation in Two Variables. For the course 8th-10th CBSE
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