Thursday

October 23, 2014

October 23, 2014

Posted by **Greg** on Saturday, October 31, 2009 at 8:37am.

y=2/x

and

y=-n/x

the minus is for the whole fraction

please show your working

thanks in advance :)

- Maths -
**Reiny**, Saturday, October 31, 2009 at 9:28amWhat do you mean by "work out" ?

Are you graphing the function ?

Make a table of values and graph some of the points. You should see what happens to the graph.

Try to get a "feel" for the numbers.

e.g. as you pick larger x's, doesn't the value of 2/x become smaller and smaller?

similarly if you pick fractional values of x, doesn't 2/x become larger and larger. What happens if you pick x = 0 ? OH oh!

Now try an x close to zero, say x = .01

Can you see the pattern?

Now repeat, using negative values of x.

Now change your equation to y = 5/x or something like that.

Can you generalize what y = n/x would look like?

**Answer this Question**

**Related Questions**

Maths - change so x is the subject y=2/x and y=-n/x the minus is for the whole ...

Maths (Recurring Decimals) - Express 3.2304 (dot above 2 and 4) as a fraction ...

Maths - I have a maths exam tomorrow and am studying with a friend. We are ...

Maths - x^3+a^3 Factor= (x-a) what is the remaninder when you divide x^3+a^3 by...

MATHS - Critical help please. Level 3 maths algebraic methods is really hard. Q...

Maths - 45% is 28 100%=? Please show me the concept and the working out as well ...

maths PLEASE HELP - how to work out partial fraction decomposition when given 1/...

Math - Find the value of x 40-x/3=4 please not the / means a fraction. I already...

Maths - The line passing through the points (-1,6) and (4,x) has gradient -2. ...

MATHS GEOMETRY!!! URGENT PLEASE. - A triangle has side lengths 10,17 and 21cm. ...