Ask your own question, for FREE!
Mathematics 18 Online
OpenStudy (anonymous):

@sidsiddhartha

OpenStudy (sidsiddhartha):

given \[f(x)=4.5x^2-3x+2\] The problem gives you the 'x' at 2 now,Find the 'y' by find the value of f(2): \[f(2)=4.5*2^2-3*2+2=14\] so till now we have x=2,y=9 right?

OpenStudy (sidsiddhartha):

sorry x=2 and y=14

OpenStudy (sidsiddhartha):

now find the derivative or the slope \[f'(x)=9x-3\\now~f'(2)=9*2-3=15=slope(m)\]

OpenStudy (sidsiddhartha):

now simply use \[y-y_1=m(x-x_1)\\y-14=15(x-2)\\15x-y=16\] thats the equation of the tangent at x=2 @mondona

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!