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how do you graph this y=3/4x-1

 

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 Oct 19, 2015
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Hi Girl 573.15       laugh

 

how do you graph this y=3/4x-1

 

There are a number of ways depending on what you have learned so far.

 

The most common way it to recognise that this is a line AND it is in gradient and y intercept form  (y=mx+b)

 

The y intercept is b and b=-1.     This is a point.  You can graph it straight away :))

 

The gradient or slope is m and m= \(\frac{3}{4}= \frac{rise}{run}\)

 

The slop is positive so the line has to head off towards the top right corner of the number plane.

 

Start at the y intercept.  Go up 3, go across 4  (in the right direction, which is right) put a little cross.

 

Join the points up and you have your line.

 

Now label you line with the equation and it is all done.  :))

 

Here is the graph :

 

https://www.desmos.com/calculator/26tumtcepp

 Oct 19, 2015
edited by Melody  Oct 19, 2015

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