Asked by michelle
find equation of the tangent line to the graph of f(x) at the given point f(x)=(x-1)(2x+3)/(x-5) at 9, 42
Answers
Answered by
Reiny
method:
expand the top, then take the derivative using the quotient rule.
Plug in the point (9,42) to get the slope
now you have the slope and a point, use the grade 9 way to find the equation of that straight line.
expand the top, then take the derivative using the quotient rule.
Plug in the point (9,42) to get the slope
now you have the slope and a point, use the grade 9 way to find the equation of that straight line.