All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions.

(i)

(ii) Using Graphing Calculator, equation of line,

(iii)

Distance A to

Distance A to

### KS Comments:

Some students have slight confusion about how to evaluate the modulus, mainly cos they confuse over are the applying modulus to a scalar or vector quantity.

[…] paper has some questions that springs a surprise and throws students off their feet. In 2013, we saw the distance with two planes. In 2011, we saw a trigonometry Mathematical Induction. In […]