http://static.k12.com/calms_media/media/1331000_1331500/1331297/1/c5c8e45fd70b35572ab9141472538d3ecb31705d/HS_AL1G2_S1_07_10_ART2.jpg
@Kamille

What's the equation?

Question

http://static.k12.com/calms_media/media/1331000_1331500/1331297/1/c5c8e45fd70b35572ab9141472538d3ecb31705d/HS_AL1G2_S1_07_10_ART2.jpg
@Kamille 

What's the equation?

kamille · Answer

alright, do you know linear equation formula?

anonymous · Answer

No..

kamille · Answer

it is y=ax+b where a and b are numbers

kamille · Answer

could you look at the graph and tell me what are the points in this linear equation?

anonymous · Answer

-8x + 9y = 23?

kamille · Answer

no

anonymous · Answer

oh.

anonymous · Answer

$$y-y _{1}=\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\left( x-x _{1} \right)$$

anonymous · Answer

-8x + 9y = -23 is one of the choices. I don't know.. I just want to get my math grade up.. 
-8x + 9y = 23 is another one of the choice..

anonymous · Answer

??

kamille · Answer

points are (0.5;3) and (-4;-1). Since you know that  a common formula for linear equation is y=ax+b and you know y and x values (from points), you need to find a and b, in order to  know the equation of this function

so,you can make the system of equations:
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