Question

chapter - 20
Knowledge about coordinates system graphs
Exercise - 20.1
1 .Draw the graphs for the following equations:
(i) y-3x+1 (ii) y = 2x -7
2.Draw the graph of the equation A-2x, when:
(i) x = 2 (ii) x= 5
3 .Draw a graph of the equation x =
${m}^{2}$
Draw a graph of the equation z = x =
${x}^{3}$
A patient is admitted in the hospital and temperature time graph is to be plotted. The temperature are given as below: Time 11 Hrs. 12 Hrs. 13 Hrs. 14 Hrs. 15 Hrs.
Temperature °F 102° 104° 106° 98° 100
Express the above data graphically.

6. The sides of different squares are given as under. Find their perimeters and then plot the points (side, perimeter)
2 cm, 3 cm, 4 cm, 5 cm, 6 cm
Join these points by using a ruler. Do you get a segment of a line ?
7.In the above question, find the area of the square and plot the points (side , area ) . Join these points by using a ruler . Do all this point lie on a straight line ?

8. the following table showing multiples of 2
$\frac{x}{2} \frac{1}{2} \frac{3}{6} \frac{4}{8} \frac{5}{10 } \frac{7}{14}$
plot the points (1,2),(3,6).... join these points . Do all the these points lie on a straight line ?

9. Plot the points for multiples of 3. Join them and verify that these points lie on a straight line.

10. We know that 1 cm equal to 10 mm . How many mm are in 2cm , 3cm, 4cm ,5cm, 6cm and 7cm? Plot ( cm ,mm) points and join them . Do they lie on a straight line

please send these exercises answer

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Answer 1

Answer:

its a veey long questions

Answer 2

Answer:

U should try yourself

Its a very long question