Given the function f(x)=3x+1 and the linear function g(x), which function has a greater value when x=3? graph of the line g of x equals 4 times x minus 5

A- f(x) is greater
B- g(x) is greater
C- f(x) and g(x) are the same when x=3
D- g(x) is undefined when x=3

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