Given the points X (-9,2) and Y (5,-4), find XY. You must write the formula (2 points)

You must show where you substituted into the formula (6 points)

Your final answer is correct. (2 points) (If a decimal, round to the nearest tenth)

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

what

a

step-by-step explanation: