Calculating Slope.. Need a quick response please!

This is more of economics, but I think it's easy enough

I have 2 curves:

1) Q = 180 - 2P ; and
2) Q = -15 + P

I got slope as 2 and 1 respectively. Can anybody confirm this please?

Reply 1

edothero

Original post by DiceTheSlice

This is more of economics, but I think it's easy enough

I have 2 curves:

1) Q = 180 - 2P ; and
2) Q = -15 + P

I got slope as 2 and 1 respectively. Can anybody confirm this please?

Shouldn't the first one be -2?

As slope =

\dfrac{\Delta y}{\Delta x}

where

\Delta

represents 'change in'

As you said, it's more of an economics thing, something I have minimal knowledge about. But if you're looking for the gradient of the line, you would differentiate the equation and set it to = 0 (if you still have any unknown variables)

\dfrac{dQ}{dP} = -2

The second one seems fine.

(edited 8 years ago)

Reply 2

TaintedLight

Original post by edothero

Shouldn't it be -2?
As slope =

\dfrac{\Delta y}{\Delta x}

\dfrac{dQ}{dP} = -2

As you said, it's more of an economics thing, something I have minimal knowledge about, but if you're looking for the gradient of the line, you would differentiate the equation and set it to = 0