Question

consider quadratic functions in the form f(x)=ax^2 + bx + c . Express the equation of the tangent line to the function f at the point (p,q) in terms of (i) a, b, p and q and (ii) a, b, c and p

Answer 1

using calculus ?

Answer 2

yeah i tried that but i cant get the right answer

Answer 3

what u got as slope of tangent ?

Answer 4

uhh one sec

Answer 5

2ap + b

Answer 6

as the slope

Answer 7

yeah, thats slope at point (p,q)
what u got final answer as with that ?

Answer 8

ah no i see the error in my ways, thanks anyway mate. When i got to y=mx+c to generate the tangent equation i was still using x instead of substituting p as x again. Sorry about that i just realised after trying 3 times

Answer 9

no problem...

Answer 10

just a silly mistake

Answer 11

Thanks for the help anyway mate, sorry to waste your time. Have a good night :)

Answer 12

welcome ^_^