Silly Mistake (1 Viewer)

[Premus]

Hey

For the 2004 HSC exam q1d)
i got b = -1 instead of -2 (lose 1 mark)

so for the next part i used this value and did everything correctly- do i lose another mark for using the wrong value?

THanks

 

[Trev]

my teacher told me (im only tsarted yr 12 this term) that if u do the next question correctly just with the wrong value you still get it right, because its still the "correct mathematical process" or sumthin, quote from teacher