How do you find the slope of a tangent line to the graph of the function #f(x)= 13 − x^2 # at (3,4)?
1 Answer
Dec 5, 2016
Explanation:
#" the slope (m) of the tangent to f(x) at x = a is"#
#color(orange)"Reminder " color(red)(bar(ul(|color(white)(2/2)color(black)(m=f'(a))color(white)(2/2)|)))#
#f(x)=13-x^2rArrf'(x)=-2x#
#rArrf'(3)=-2(3)=-6=m#
