Originally Posted by Pete

Wouldn't you just set them equal to each other, solve for x, then plug x into each of the original equations and add them together?

example:

0.0667x + 4 = 0.2x - 2

0.0667x + 6 = 0.2x

6 = .1333x

x = 45.01

y = 0.0667(45.01) + 4
y = 7.002

y = 0.2(45.01) - 2
y= 7.002

Win...? Nevermind, I have the wrong idea there.

I think the answer is simpler than I thought:

y = 0.2667x + 2

Originally Posted by DarkSideAccord

i did the equal thing, but tht's not right i think.. how did u get the final answer?

Originally Posted by Jani 5

y = 0.0667x + 4 + 0.2x - 2 = 0.2667x + 2

Originally Posted by Jani 5

y = 0.0667x + 4 + 0.2x - 2

Originally Posted by DarkSideAccord

u need to add the y too if u do tht

Originally Posted by DarkSideAccord

u need to add the y too if u do tht

Originally Posted by Jani 5

no you dont.


those equations are a function of X.

you plug in 1 for X and calculate Y1
you plug in 2 for X and calculate Y2
you plug in 3 for X and calculate Y3
... and then you plot the points.

when you add 2 equations in y = mx + b format.. you just add the right side together.