Help!!!

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

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

If so....what are they  ??