What is the equation of the line tangent to f(x)=4x^2 + 4x - 4f(x)=4x2+4x−4 at x=-2x=−2?
1 Answer
Dec 20, 2015
Explanation:
The tangent line will pass through the point
Thus, the tangent line will pass through the point
The slope of the tangent line is
Write this in point-slope form.
In slope-intercept form:
graph{(y+12x+20)(4x^2+4x-4-y)=0 [-23.14, 17.41, -8.89, 11.37]}