Find the equation of the tangent to: y = X^2 + 3x + 2 at the point (2,12)

(1) Find the gradient using differentiation (2) If the gradient at (x1,y1) is m,y - y1 = m(x - x1)
(1) We differentiate the given equation:dy/dx = 2x + 3
Then, find the gradient at (2,12). Sub x= 2 into dy/dx = 2x + 3 dy/dx = 2(2) + 3dy/dx = 7
(2) y-12 = 7(x-2) y-12=7x-14 y=7x-2

SC
Answered by Samuel C. Maths tutor

4183 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Differentiate x^x


A circle A has equation x^2+y^2-6x-14y+54=0. Find a) the coordinates of the centre of A, b) the radius of the circle A.


Integrate 3x^2 + 4/3 x^5 with respect to x


Use logarithms to solve 9^x=15


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning