0
Votes

When should I use a straight line graph?

By Kris Boulton on the 11th of June, 2012

1 Answer

  • 0
    Vote

    You want to use a straight line graph when your inputting data that continuously changes over time.

    Refine By lkim802 on the 15th of January, 2013

Suggested reading…

Understand the difference between a demonstration and a proof

Using algebra, it is possible to prove that some things will always be true, this is sometimes referred to as algebraic proof questions. 

For example, let’s start with the hypothesis that an even number multiplied by an even number will always result in another even number.

We can demonstrate that this is true by selecting any two even numbers and multiplying them together:

4 x 10 = 40

40 is even, therefore our hypothesis holds. But, no matter how many examples we choose, we will never prove that it is true, because there may yet be two even numbers we could select which in fact don’t result in an even number.

We can only prove our hypothesis by using algebra.

2n is a multiple of 2, therefore must always be an even number. 2m is also a multiple of 2, therefore must always be another even number.

2n x 2m = 2nm

nm is just another unknown number, it could be odd or even.

2nm is a multiple of 2, therefore must always be an even number.

Therefore, an even number multiplied by an even number will always result in an even number. And we have proved it.

Nothing in this section yet. Why not help us get started?

Taking IT global

Related Questions