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Mathematics 7 Online
OpenStudy (anonymous):

Calculus help please. A tangent problem, not sure if im doing the right formula. Find the equation of the tangent: f(x) = x^2 − 2; a = 9

OpenStudy (anonymous):

okay, have you found the derivative of the function

OpenStudy (anonymous):

is the derivative 4?

OpenStudy (anonymous):

the derivaitve of the function?no

OpenStudy (anonymous):

do you know what a derivative is?

OpenStudy (anonymous):

is the derivative 4?

OpenStudy (anonymous):

isnt it the change in a function

OpenStudy (anonymous):

it is the instantanous rate of change of y with respects to x and a value of x

OpenStudy (anonymous):

so get the derivaitve of the function and plug in the value of a

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