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MATH 1300.03F D Quiz 4 Friday, October, 15 1999

NAME:

Student Number:tex2html_wrap_inline32 No.tex2html_wrap_inline34Marks tex2html_wrap_inline36


(2 Marks) Find the equation of the tangent line of tex2html_wrap_inline38 at (1,4).

Solution: Since f'(x)=8x+1 for tex2html_wrap_inline44, f'(1)=9. Hence, the equation of the tangent line of f at (1,4) is y=9(x-1)+4=9x-5.




Kunquan Lan
Wed Oct 20 14:38:45 EDT 1999