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Topic review (newest first)
- Shivamcoder3013
- 2012-10-17 08:17:18
Oh, my apologies. dy/dx = 2x + a so...
- bobbym
- 2012-10-16 11:31:20
You are correct!
- anonimnystefy
- 2012-10-16 11:29:35
I moght be wrong, but I am getting -6 and 7 in #3.
- bobbym
- 2012-10-16 11:27:45
He was a great mathematician.
- Shivamcoder3013
- 2012-10-16 11:26:50
Eureka again. More discoveries then Archimedes.
- bobbym
- 2012-10-16 11:25:43
Fourth one is correct!
- Shivamcoder3013
- 2012-10-16 11:24:47
a=-3 and b=-6
- Shivamcoder3013
- 2012-10-16 11:23:47
Eureka, and why?
- anonimnystefy
- 2012-10-16 11:21:44
The second one is correct. The third one isn't.
- Shivamcoder3013
- 2012-10-16 11:19:57
Eureka!
- bobbym
- 2012-10-16 11:17:18
First one is correct!
- Shivamcoder3013
- 2012-10-16 11:16:26
Homework:
What is the slope of the tangent line to the graph of y = x^3 at the point (2,8) ?
12
Consider the parabola given by the equation y = x^2 + 4x - 5. At which point on the graph of this parabola is the slope of the tangent line equal to 10?
(3,16)
The line y = 2x - 9 is tangent to the parabola y = x^2 + ax + b at the point (4,-1). What are the values of a and b?
-3,-6 respectively.
circle with equation x^2 + y^2 = 25. Which is the equation of the tangent line to the circle at the point (3,4)?
3x + 4y = 25