***The DIRECT vs. INDIRECT vs. INVERSE vs. PROPORTIONAL Post***

Ahh, the long awaited post. At least for Mr. Battaglia- for my nonexistent other readers (if you do exist, thank you for reading! Thank you! Thank yo- who am I kidding? We all know the only person who reads this is paid to!) you did not know this was coming. But here it is!


These are our definitions for direct, indirect, inverse, and proportional functions. We came up with these ourselves, and they may be corrected later.

DIRECT:

• When x goes up, then y goes up. OR- the opposite, when x goes down, y goes down. (or vice versa)
• POSITIVE SLOPE

INDIRECT:

• As Btags always says is the best definition for indirect- NOT DIRECT
• When x goes up, then y goes down/ when x goes up, y does not (meaning it could stay the same or other crazy functions) (or vice versa)
• NEGATIVE SLOPE

INVERSE:

• Opposite, reciprocal slope
• When x goes up, y goes down
• IF X DOUBLES, Y IS HALVED

PROPORTIONAL:

• Slope is constant
• x to y has same ratio
• DOUBLE X, DOUBLE Y
• Must go through origin

I found that it seems direct and indirect are opposites, as are inverse and proportional.

Hopefully these will be helpful!