1. Trial & Improvement
Saturday, 13 April 2019

2. x = 6.9 to 1 decimal place Example
Adam is trying to solve the equation by trial and improvement.
Work out the value of x correct to one decimal place x
Comment 6
Too small 7
Too big
6.8
Too small
6.9
Too big
6.85
Too small
x = 6.9 to 1 decimal place

3. x = 1.7 to 1 decimal place Example
Ellen is trying to solve the equation by trial and improvement.
Work out the value of x correct to one decimal place x
Comment 2 11
Too big 1 4
Too small
1.6
Too small
1.7
10.013
Too big
1.65
Too small
x = 1.7 to 1 decimal place

4. x = 4.4 to 1 decimal place Example
Assad is trying to solve the equation by trial and improvement.
Work out the value of x correct to one decimal place x
Comment 5
120
Too big 3 24
Too small 4 60
Too small
4.5
86.625
Too big
4.3
Too small
4.4
Too big
4.35
Too small
x = 4.4 to 1 decimal place