Find the stationary point of 3x^2+7x
dy/dx=6x+7
6x+7=0
x=-7/6
Sub back into original equation; y=98/6
HS
Answered by Harrie S. • Further Mathematics tutor
3095 Views
See similar Further Mathematics GCSE tutorsRelated Further Mathematics GCSE answers
All answers ▸Show that 2cos^2(x) = 2 - 2sin^2(x) and hence solve 2cos^2(x) + 3sin(x) = 3 for 0<x<180
Point A lies on the curve y=3x^2+5x+2. The x-coordinate of A is 2. Find the equation of the tangent to the curve at the point A
The circle c has equation x^2+ y ^2=1 . The line l has gradient 3 and intercepts the y axis at the point (0, 1). c and l intersect at two points. Find the co-ordinates of these points.
Find the coordinates of any stationary points of the curve y(x)=x^3-3x^2+3x+2