42. [-/2 Points] DETAILS LARAPCALC10 2.2.047. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Finding an Equation of a Tangent Line Consider the following function and point. See Example 10. ((x ) = Vx+ Vxi (1, 2) (a) Find an equation of the tangent line to the graph of the function at the given point. (b) Use a graphing utility to graph the function and its tangent line at the point. Use the tangent feature of a graphing utility to confirm your results. 4 2 2 X -4 -2 2 4 X -4 -2 2 X 4 -2 2 4 -2 -2 -2 -4 -4 -4 O 400