Types of ways to write a linear equation
y=mx+b
y-y_1=m(x-x_1)
Ax+By=C
solve this form for y=mx+b
What is a system of equations
How can we solve systems of equations?
graphing (technology)
substitution
elimination
matrix? (--will be our next class)
what good does this do us?
linear programming
what works for things that aren't linear?
supply and demand questions