Calculus
posted by dave .
find the equation of a line tangent to the graph of y = x / (square root of 5x^s +4), at x = 1.
am i suppose to take the derivative? if so, then what else?

Calculus 
Reiny
yes
take the derivative and sub x=1 into that, giving you the slope of the tangent
also sub x=1 into the original equation to get y, so then you have the slope of the tangent and the point of contact.
Can you find the equation of a line given the slope and a point on it??
BTW, is that supposed to say.. 5x^2 +4 ?
Respond to this Question
Similar Questions

Calculus
Find the equation of the tangent line to the graph of f(x)= (8x^23)/(x^2+4) at the point where x=1. Take the derivative of f(x). That gives you m, the slope. Then, y= mx + b Put in x,f(x) for x,y. Calculate b. I get it now. Thanks … 
Calculus
An equation of the line tangent to the graph of y=(2x+3)/(3x2) at the point (1,5) is...do I take the derivative of y=(2x+3)/(3x2) to find the slope and then plug that into y5=m(x1)? 
HS Calculus
Definition of the derivative to calculate f'(x) if f(x) = square root 2x. Find the equation of the tangent & normal line to the graph of f at x=2. Tangent line  y=2xx Normal line  y = 1/2x +3 I do not know whether these are the … 
calculus
Find the equation, in slope intercept form , of the line tangent to the graph of the square root of (x^3+7x+1), when x=3 
calculus
Find an equation of the line that is tangent to the graph f and parallel to the given line Function: f(x)= 1/ square root of x Line: x+2y6=0 
Calculusmath
Find an equation of the line that is tangent tothe graph of f and parallel tothe given line. Function: 1/square root of x Line: x+2y6=0 
Calculus
Find the slope of the functions graph at a given point. Then find an equation for the line tangent to the graph there. f(x)=2*square root of x. (1,2) Could someone please help me figure this one out? 
calculus
1. Which of the following expressions is the definition of the derivative of f(x) = cos(x) at the point (2, cos(2))? 
AP Calculus
Suppose that f has a continuous second derivative for all x, and that f(0)=1, f'(0)=2, and f''(0)=0. A. Does f have an inflection point at x=0? 
Math (equation of tangent line)
Consider the implicit equation 2xy1=(x+y+1)^2 a) Compute and solve for the derivative dy/dx as a function of x and y. b) Find the equation of the tangent line to the graph of the above when y=1. For part a, I found the derivative …