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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE General & Further Mathematics => Topic started by: iwannagetA on November 02, 2010, 08:40:47 pm

Title: VCAA 2008 Exam 2
Post by: iwannagetA on November 02, 2010, 08:40:47 pm

CORE question 4 c)
whats the slope?

part b answer was :  Arm span=-15.63+1.09xHeight

Title: Re: VCAA 2008 Exam 2
Post by: _avO on November 02, 2010, 08:41:55 pm

slope is the gradient (i.e. the coefficient in front of the independent variable) being 1.09

Title: Re: VCAA 2008 Exam 2
Post by: iwannagetA on November 02, 2010, 08:43:16 pm

slope = gradient
ty mate :D

Title: Re: VCAA 2008 Exam 2
Post by: iwannagetA on November 02, 2010, 08:49:13 pm

now Q5a + b

i dont get it?????

Title: Re: VCAA 2008 Exam 2
Post by: _avO on November 02, 2010, 08:51:59 pm

They are asking you to linearise the data using y vs 1/x then finding that r value

then the 2nd bit is just subbing in a value in the equation that you find

Title: Re: VCAA 2008 Exam 2
Post by: iwannagetA on November 02, 2010, 09:07:37 pm

Geometry
Q1 a) we use v=1/2bh?

someone work it out plz

Title: Re: VCAA 2008 Exam 2
Post by: jasoN- on November 02, 2010, 09:12:14 pm

No, you use L*W*H (ie. Area of base x h)
so V = 6*10*.2 = 12

Title: Re: VCAA 2008 Exam 2
Post by: iwannagetA on November 02, 2010, 09:17:17 pm

ok what about b which one do we use for i and ii