Q21 of 56 Page 13

Aarushi was driving a car with uniform speed of 60 km/h. Draw distance-time graph. From the graph, find the distance travelled by Aarushi on

(i) 2 Hours


(ii) Hour

Uniform speed is 60 km/hr


Speed = distance/time


⇒ distance = 60 × time


Slope of diatance time graph is 60.



(i) Distance travelled in 2.5 hours = 150 km


(ii) Distance travelled in 0.5 hours = 30 km


More from this chapter

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19

The path of a train A is given by the equation 3x+4y-12=0 and the path of another train B is given by the equation 6x+8y-48=0. Represent this situation graphically.

 20

Ravish tells his daughter Aarushi, “Seven years ago, I was seven times as old as you were then. Also, three years from now, I shall be three times as old as you will be.” If present ages of Aarushi and Ravish are x and y years respectively, represent this situation algebraically as well as graphically.

 1

Give the geometric representations of the following equations

(a) on the number line


(b) on the Cartesian plane:


(i) x=2


(ii) y+3=0


(iii) y=3


(iv) 2x+9=0


(v) 3x-5=0

 2

Give the geometrical representation of 2x+13=0 as an equation in

(i) One variable


(ii) two variables