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Mathematics 15 Online
dude:

For TGP

dude:

Okay so here you want to find the slope So lets choose the first columns

dude:

For reference |dw:1548864215042:dw|

dude:

|dw:1548864228539:dw|

dude:

How to you get from 1 to -2? (Subtract) -2-1 = -3 That is your slope

dude:

Equation of a line is \(y=mx+b\) m is slope b is y intercept \(y=-3x+b\) We still need to find b

dude:

To find b we can use any column given to substitute input is x output is y Lets use the first column |dw:1548864422481:dw|

dude:

Input = x = 1 Output = y = 1 So \(y=mx+b\) \(1=-3(1)+b\) => \(\bf 1=-3\times 1+b\) -3 times 1 is -3 ================ \(1=-3+b\) Opposite of -3 is +3 so we add 3 on both sides \(1=-3+b\) \(\color{green}{+3}~~\color{green}{+3}\) And the equation of a line is \(y=-3x+4\) x and n here are interchangeable \(y=-3n+4\) So for every n value you have to multiply it by -3 and then add 4 to it

dude:

thiswascrashcourseuhh If you want me to re-explain all of this and not go fast just tell me LOL

ThisGirlPretty:

All that was from crashcourse?? LOL. I think understand now, thank ye sir. Sorry it took so long I was taking nootes xD

PinkGlitterz:

The slope is rise/run, or change in y-coordinate/change in x-coordinate :)

dude:

It was a crash course, not from crash course xD

dude:

Yes that helps but only in graphs

PinkGlitterz:

So yes the slope would in fact be -3

dude:

Change in coordinates is not the most intuitive and easiest to look at from what I've seen

dude:

Also I am pretty sure about my answers LOL am taking calc rn so uh

ThisGirlPretty:

I'm so densed xD, but thank ye dude, I owe you my kidneys, heart, and lungs uwu

dude:

Keep your organs pl0x

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