Question

A girl pays Rs 16 for 2 pens and 3 pencils.draw its graph. ​

Answer 1

Answer:

how we draw a graph on brainly

Answer 2

Explanation:

Let the price of 1 pen be 'a'.

         price of 1 pencil 'b'.

Thus,

⇒ cost of 2 pen + 3 pencil = 16

⇒  2(a) + 3(b) = 16

⇒ 2a + 3b = 16

 

    For graph:

when a = 2,

             2(2) + 3b = 16

                  ⇒ 3b = 16 - 4 = 12

                  ⇒ b = 12/3 = 4

 When pair is (2, 4).

when a = 8:

            2(8) + 3b = 16

             ⇒ 3b = 16 - 18

             ⇒ b = 0/3 = 0

 Another pair is (8, 0).

Draw a line joining these points on graph.