If you mean y = -9x + 6, or something similar: ANY equation that is solved for "y" can be considered a function (of "y", with respect to "x"). You an write the above in functional notation as:
f(x) = -9x + 6
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- 9X + 3Y = - 6 add 9X to each side 3Y = 9X - 6 divide all by 3 Y = 3X - 2
-9x+6=y (swap over +6 and y) -9x-y=-6 (when u move numbers or letters over d equal sign u need 2 change signs) 9x+y=6 (chaned all signs) y= 6-9 y= -3 9x+y=6 9x+-3=6 9x=6+3 9x=9 x=9(divided by) 9 x=1 9x+y=6 9+-3=6 So the ordered pair is (1,-3)
Well, if you solve the equation for "y", you have "y" as a function of "x". Or you can do it the other way round; solve for "x", to get "x" as a function of "y" (the first option is more commonly used, though).
9x+3y = 6 3y = -9x+6 y = -3x+2 which is now in slope-intercept form
If you mean 9x-2y = 6 then it is a straight line equation that can be expressed as y = 4.5x-3 whereas 4.5 is the slope and -3 is the y intercept.