The endpoints of a side of rectangle abcd in the coordinate plane are at a (2, 11) and b (7, 1). find the equation of the line that contains the given segment. the line segment is ad. what is the equation?

ANSWER

or

EXPLANATION

Let the rectangle be oriented as shown in the diagram.

The line segment AD passes through .

All we need now is the slope of AD then we can find its equation.

Since AD is perpendicular t AB, we determine the slope of AB and then use it to find the slope of AD.

The slope of AD is the negative reciprocal of the slope of AB because they are perpendicular.

The equation of AD is given by;

Multiplying through by 2 gives,

or

after simplifying it i got: -36.25 as my answer. hope that !

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