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is there something in the question you haven't included?
ohhhhh im sorry it's E=26 + 3.2x sorry, sort of new here.
i think the break even point is where the lines cross
ie, the point that solves both the equations
so how would i go about this? should i just graph it in my calculator or is there some formula for this?
well i wold simply solve the second equation for x (by dividing by 4.5) and then substituting this into the first equation
so im looking for i?
your looking for the \(x\) that makes I=E
i got x= i/4.5 then plugged it into 26+ 3.2 (i/4.5) am i on the right path?
yeah, E=26+3.2 (i/4.5) simplify this a bit and you will have E in terms of I
okay, so im stuck at E= 26 +3.2i/4,5 i dont think i can those two values.
actually i think there is an better way to do this problem The break even point is when I=E so solve 26 +3.2x=4.5x
can you find \(x\) now?
Yes thank you, you are too awesome. i got x=20
good stuff, can you round that to the nearest tenth?
do i need to? it broke evenly.
im not sure,
i think the instructions might be in case it didnt break down evenly.
To be a point the point must have an \(x\) and a \(y\) value you've found \(x=20\) , to find \(y\) substitute \(x\) into either equation to get \(y\), then write the point like this \((x,y)\)
Y=i =4.5 * 20= 90 (20,90)?
Thats it \[(20,90)\checkmark\]
awesome, possum :) thanks for the help mate.