Maths Question

[jodyemm]

The line 2y=3x+6 meets the y-axis at C. The gradient of the line joining C to A (4,-3) is ?

[Old_Geezer]

Getting a bit much isn't it ?

[bibblebub]

Is someone looking for a mathematics teacher?

[sandyRoe]

I could have solved that once when I had just passed my GCSE in maths. But since then drink and decrepitude have muddled my brain. Sorry.

[Old_Geezer]

Lets see if I can get it wrong again.

At the y axis x = 0 so y = 3
The other point is x = 4, y = -3

So that is 4 across and 6 down. 4/-6 = -2/3 ?

Right or wrong I'm stoppig there. Taken enough risks for one day.

[ladyalex]

I'm afraid I am with Sandy on this one...could have done it once upon a time, but have forgotten now.
Why don't you get a text book with worked examples ?
Or do such things not exist now ?

[jodyemm]

Thanks :)

[Prudie]

I believe it's the other way round y/x so the gradient is -6/4 or -1.5
The equation of the line AC is y=-6X/4 + 3

[factor-fiction]

I agree with Prudie- the gradient is -1.5.
If you also need the equation of the line joining C and A it could be rewritten as 2y= -3x+6 or 2y=6-3x

[bibblebub]

it's the peril of getting others to give you an answer instead of bothering to work it out for yourself