West Bengal Board Solutions for Chapter: Graphs, Exercise 7: Let's work out - 18

Put three more points on the graph other than collinear points $(1,1), (2,2)$and $(3,3)$.

Study the given graph and answer the given questions below. 

$1$ guava = lengths of $2$ sides of the smallest squares along X-axis. 

$1$ rupee = length of a side of a one smallest square along y-axis. 

i) Write the relation between the number of guava and price of guava from the graph. 

ii) The price of $4$ guavas is $k \mathrm{Rs}$ then find $k$.

iii) Write the number of guavas in $\mathrm{Rs}. 30$.

iv) Write the number of guavas in $\mathrm{Rs}. 9$.

v) If the price of $9$ guavas is $t \mathrm{Rs}$ then find $t$.

Study the given graph and answer the given questions below. 

$1$ hour$=$Lengths of $2$ sides of the smallest squares along X-axis. 

$5 \mathrm{km}$$=$Length of a side of a one smallest square along y-axis. 

i) Find the relation between time and distance. 

ii) Find the distance travelled in $3 \mathrm{hours}$. 

iii) If the time required to travel $120 \mathrm{kms}$ is $k \mathrm{hrs},$ then find $k$. 

iv) Find the velocity $\mathrm{km} per \mathrm{hr}$.

v) If the distance travelled in $2\frac{1}{2} \mathrm{hours}$ is $t \mathrm{km}$, then find $t$. 

vi) If the time required to travel $45 \mathrm{kms}$ is $t_1 \mathrm{hrs},$ then find $t_1$. 

Draw the graph of the following data on the graph paper. See whether it is linear graph.

Draw the graph of the following data on the graph paper. See whether it is linear graph.

Draw the graph of the following data on the graph paper. See whether it is linear.

Draw the graph of the following data on the graph paper. See whether it is linear.

Draw the graph of the following data on the graph paper. See whether it is linear.