If The point P(1, 4) lies on the parabola y = x2 + 3x. What is the slope of the tangent to the parabola at P? How do you determine what the tangent is in this case? Thanks
Follow Math Help Forum on Facebook and Google+
Originally Posted by nosh If The point P(1, 4) lies on the parabola y = x2 + 3x. What is the slope of the tangent to the parabola at P? How do you determine what the tangent is in this case? Thanks Let t denote the tangent to the parabola, the slope of the tangent. 1. From you get and therefore at x = 1 2. Yo have the slope and a point of the line. Use the point-slope-formula to determine the equation of the line: . Solve for y.
View Tag Cloud