Tell which of the diagram is a function or not.

The answer to your question is below

Step-by-step explanation:

1.-

a) It's a function

b) It is not a function

c) it's a function

d) it's a function

2.-

a) It's a one to one function

b) it's not a one to one function

c) it's a one to one function

d) it's a one to one function

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step-by-step explanation: g=6

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b