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What is the function in slope-intercept form for each?

 

 

 

Guest Oct 26, 2017
 #1
avatar+90053 
+3

I'll do the first one.....you try the rest....if you get stuck...let me know

 

Find any two points on the graph....it appears that  (0, 1)  and (1,3)  are two of them

 

Slope  =   

 

[ subtract the y  coordinates in some order]         [ 3 - 1 ]            2

___________________________________  =  ______  =     ___   =  2

[subtract the x coordinates in the same order ]    [ 1 - 0 ]           1

 

Now.....using either one of the points  - I'll use (0,1)  ...... we can write

 

y  =  slope ( x -  x cooordinate )  +  y coordinate

 

y  =  2  (  x   - 0 )   +   (1)      

 

y  =  2 (x)    + 1

 

y  = 2x  + 1             and that's it.....!!!!

 

The slope is 2  and the y intercept   is 1

 

 

cool cool cool

CPhill  Oct 26, 2017
 #2
avatar
0

I'm a bit stuck on the second one.

Guest Oct 26, 2017
 #3
avatar+90053 
+2

OK.....have you found two points on the graph???

 

If so....what are they  ??

 

cool cool cool

CPhill  Oct 26, 2017

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