Write an exponential function in the form y=ab^xy=ab x that goes through points (0, 20)(0,20) and (2, 720)(2,720).

The exponential function that goes through and is .

Step-by-step explanation:

Let be an exponential function of the form that goes through and . Then, we have the following system of equations:

(1)

(2)

By dividing (2) by (1), we obtain the value for :

And the value for is found by (1):

The exponential function that goes through and is .

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