Find dy/dx for f(x)=3x^2 +5x
This is a simple differentiation example of a polynomial, where one uses the the standard algorithm - i.e.[nx^n-1] Ina polynomial, one differentiates all parts separately. First Take 3x^2. Multiply by the power and take 1 from it. You get 6x. Same with 5x. Answer = 6x + 5.Whats the use for differentiation? Its to find the a formula for the gradient of the polynomial at any point x. So what you effectively did was create a general formula for finding the gradient m = (y2-y1)/(x2-x1).
MR
Related Maths A Level answers
All answers ▸If 1/(x(a-x)) is equivalent to B(1/x + 1/(a-x)), Express 'B' in terms of 'a'
Simplify the following expression to a fraction in its simplest form: [(4x^2 + 6x)/(2x^2 - x -6)] - [(12)/(x^2 - x - 2)]
Find the equation of the tangent to: y = X^2 + 3x + 2 at the point (2,12)
How to integrate ln(x)