# What is plug variable?

Variable that adjusts to maintain the consistency of a financial plan.Also called the balancing item

### What are the ways to solve a system of linear equations in two variables?

the substitution method in which you take each variable and you find out the value and then plug it into the original equation.the adding and subtracting method in which you subtract\add equations to take out a variable and you can figure out what the other variable is. then you also substitute that into that into the original variable

### What is the difference between no solution and undefined?

undefined means you can not do the operation (5/0 is undefined) no solution refers to an equation not having an answer. a solution is a number which you can plug into the variable of an equation and get a true statement. So having no solution means there is no number which you can plug in and get a true statement. As a fraction is not an equation, but an expression it is not right to…

### Why would you want to solve a literal equation for a variable when you could simply plug in known values and then solve the resulting linear equation?

if you solve by plugging in the known values ahead of time you won't have a general formula for the variable in the literal equation. Therefor if the known values change, you would have to start all over again, making each problem more individualized. Once the literal equation is solved for some variable, if the known values change all you have to do is plug in those new numbers to your literal equation, and out…

### How do you solve mathematical equations using the subsitution method?

Say you have a pair of equations like a+b=1 and 2a+3b=5. To solve using substitution you would set one equation against one variable (say a=1-b) then plug that into the other (2(1-b)+3b=5), then solve for the one variable you have there and then plug that result into the other equation (in this case b=3 and a=-2).

### What will be the manipulated variable and responding variable of this research topic?

What will be the manipulated variable and responding variable of this research topic? Think it's a good idea to plug into iTunes, surf the Web, or watch TV while doing homework or trying to read? Lots of people do it and claim that jumping from one activity to another keeps their attention level up and even gives their brain some time to "relax" between the more challenging tasks. Just how efficient is multitasking?

### How do you write a polynomial?

depending on your number's you plug them in differently. there is no real formula or equation for writing a polynomial. let's say you have the number; 8. & the variable; x(squared). you would get the polynomial: 8x(squared). you're pretty much just placing the number & variable together. hope that helped!(: