Mod 3 Formulas Flashcards
1
Q
how do you solve by substitution?
A
isolate a variable, plug it into the other equation, solve for the other variable, plug back in and find the first variable
2
Q
how do you solve by elimination?
A
multiply/divide one equation to get opposite coefficients, eliminate one variable, solve for remaining variable, plug back in
3
Q
1 solution in a system=
A
consistent system
4
Q
infinite solutions=
A
consistent system
5
Q
no solutions=
A
inconsistent system
6
Q
how do you solve a system of inequalities?
A
graph all given inequalities, shade region that makes all statements true
7
Q
how do you define variables?
A
variables are the items that create profit in linear programming.
8
Q
objective equation
A
profit=#x+#y
9
Q
constraints
A
x >/0, y >/0, time, space
