Question
Find all the points (x,y) on the graph of f(x)=9x^2-36x+35 where the slope of the tangent line is zero.
Answers
Steve
well, how do you find the slope of the tangent? f'(x)
f'(x) = 18x - 36
so, where does f'(x) = 0?
Remember, x is not your answer; the points (x,f(x)) are the answers
f'(x) = 18x - 36
so, where does f'(x) = 0?
Remember, x is not your answer; the points (x,f(x)) are the answers