the line y=3x+k is tangent to the curve x^2+xy+16=0 find pos

Find the gradient of the tangent to the curve y=(3x-2)(x+4) 1.Find the equation of the tangent to the curve y=x^2,which find the slop of tangent line to the curve r=2+4sin Find the equation of line tangent to the graph of f(x)=e+ln write the equation of the tangent line to f(x)=x+x×x that is Find an equation of the tangent line to the curve at the giv Find the equation of the tangent line at x=2 for f(x)=√(（4x+ 一道英文数学题求救!a tangent line to the eclipse x^2+4y^2=5 has an x- 英语翻译Find the turning points on the curve Y=sin 2x+3 over the tangent line For what values of a and b is the line 4x+y=b t For what value of A is the plane 2x-2y+z=3 is tangent to the an equation of the line tangent to the graph of f(x)=x(1-2x)