Introduction to the Slope of a Line

This is a very important concept to understand the next videos. This is the 9th of 15 videos about graphing equations. The other three series are "Solving Equations", "Word Problems" and "Factoring".

Category:

Howto & Style

Tags:

• mathematics
• graphing
• series

[numberlife]

question: "Can we allow the formula of slope in this way: m = x2-x1/y2-y1? Why?

[minkusbc]

If you are using the slope formula (i have a video of this as well), make sure when you put it into your calculator that you use brackets, such as:  m = (y2 - y1)/(x2 - x1). Make sure the y-values are on top (numerator) and the x - values in the bottom (denominator)

[BigCamCam1]

I am just about to do my first maths GCSE and before last week i had never even heard of this, then out teacher started telling us about it and i didnt get it one bit. I watched this video and all of a sudden i can do these easily, thanks!!

[garvam]

and yess...u even put sound effect ....dam why i did not get a teacher like u , so i would not have drop out,,,dam i hate you !!!

[garvam]

u r a genius teacher...i am amazed to see at how u make a visual graphic and teach ! thats awesome , thank you sir ! we need teacher like you.

[PoliteTia]

Sweeeeet!

[BleuWaterStones]

@minkusbc I stand corrected!

[minkusbc]

@BleuWaterStones: Actually, not only is -2 an integer, it is a rational number with a denominator of 1. So therefore I would write - 2 as -2/1 and do the question just as I would any other fractional slope. I'm not really sure what your comment is driving at. Do you think I was avoiding integers? By the way, whole numbers are considered to be 0, 1, 2, 3, 4, ..... in other words, not negative!

[winterseasonLA]

thank you.

[scarletgrief]

@numberlife any form would do actually because they teach u that the rules they thought u will not be needed anymore try it works either way

[XTrinhbuiX]

you helped me alot.

i watched 5 video's and nothing helped till i saw yours.

YOU ARE THE MOST BRILLIANT PERSON EVER.

thank. xD