## 2002 Winter Diet paper 2 Question 6

### oddbins

Posted 19 May 2005 - 01:34 PM

Can anyone one help with question 6 please?
Thanx.

### aldo

Posted 19 May 2005 - 01:46 PM

All you should do is choose appropriate values of x and substitute them into the formula given until you get f(x) as close to zero as possible. As you are only asked to find the value of a to one decimal place, you wont get an answer of zero, but choose value which gives you an answer closest to zero.

By inspection of the graph you would expect the value of a to lie between 0.1 and 0.5 and should substitute these values through the equation.

You should find that a = 0.2 to one decimal place.

Any probs, give me a shout!!

### oddbins

Posted 19 May 2005 - 01:55 PM

QUOTE(aldo @ May 19 2005, 02:46 PM)
All you should do is choose appropriate values of x and substitute them into the formula given until you get f(x) as close to zero as possible.  As you are only asked to find the value of a to one decimal place, you wont get an answer of zero, but choose value which gives you an answer closest to zero.

By inspection of the graph you would expect the value of a to lie between 0.1 and 0.5 and should substitute these values through the equation.

You should find that a = 0.2 to one decimal place.

Any probs, give me a shout!!

kool, that helped alot thanks!

### JiLL

Posted 19 May 2005 - 01:59 PM

yeh that helped me too!

Lets just hope that tomorrows paper isn't as hard as that paper!!

GOOD LUCK EVERYONE WHO IS SITTING HIGHER MATHS TOMORROW!!

### aldo

Posted 19 May 2005 - 02:16 PM

No problem!!! I'm sure you will all be fine tomorrow, just attempt each problem logically.