finite math Chapter 1-2

(Input-Output Models) AX=D, whats does X=

(I-A)-1 or the inverse of the Identity matrix - input-output matrix

Perpendicular Lines

-1/m

if f(x) is f(4) x=?

4

(Input-Output Models) Closed systems

demand is zero, all is consumed

(Input-Output Models) open systems

have excess to sell

there is no division with matrices, what do you do?

inverses

slopes and parallel Lines =

m

m=

rise/run or y2-y1/x2-x1

Slope-Intercept Form

y=mx+b