Posted by Anonymous on Friday, January 25, 2013 at 3:36pm.
Let f(x)=3x^4-2x^2+3
a) find f'(x)
Answer: f'(x)=12x^3-4x
b) find the slope of the line tangent to the graph of f at x=3.
Answer:312
So I got those firs two right but what I need help with is part C which is
c) find an equation of the line tangent to the graph of f at x=3
- Calculus - gabriella, Friday, January 25, 2013 at 3:40pm
what does ^ mean
- Calculus - Anonymous, Friday, January 25, 2013 at 3:43pm
to the power of, for example x squared or x cubed
- Calculus - Steve, Friday, January 25, 2013 at 3:49pm
surely by now you know that the line through (h,k) with slope m is
y-k = m(x-h)
you have h=3,m=312, and k=f(3)
plug and chug.
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