SOLUTION: Find the gradient of the curve y=x3 + 5x+3 at the point (3, 15)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find the gradient of the curve y=x3 + 5x+3 at the point (3, 15)      Log On


   

Question 764188: Find the gradient of the curve y=x3 + 5x+3 at the point (3, 15)
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
y = x^3 + 5x + 3
dy/dx = 3x^2 + 5 using x = 3 from (3,15)
= 27 + 5
= 32 This is the gradient.
Hope this helps.
:-)