Which equation is the BEST fit for the data in the graph?
A) y = x + 2
B) y = 2x + 1
C) y = x - 1/2
D) y = 1/2x - 1
http://www.usatestprep.com/modules/gallery/files/30/3076/3076.png

Question

Which equation is the BEST fit for the data in the graph?
A)	y = x + 2	
B)	y = 2x + 1	
C)	y = x - 1/2
D)	y = 1/2x - 1
http://www.usatestprep.com/modules/gallery/files/30/3076/3076.png

welshfella · Answer

Find the slope 
take the point at y = 18 ( the vertical axis) and divide it by the correspong value on horizontal axis

welshfella · Answer

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welshfella · Answer

slope = Y?X

welshfella · Answer

Y/X

heart_offire · Answer

that would be 2 9 goes into 18 2 times

welshfella · Answer

18/9 = 2

welshfella · Answer

the equation of a straight lione is of the from
y = mx + b
where m = slope

here m = 2

welshfella · Answer

so the correct equation will contain 2x

welshfella · Answer

so now you know

heart_offire · Answer

so its b because the slope is 2x

welshfella · Answer

yes

anonymous · Answer

welsh im stock when u finish here help me solve mine ok

welshfella · Answer

the 'b' part in the equation is the point where the lione cuts the y axis 
If you imagine the line through the points you'll see that it is about 1.