Hi I need help with questions 20-23 please

5:24 webassign.net 20. [-/1 Points] DETAILS TANAPMATH7 9.6.064.NVA MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find an equation of the tangent line to the graph of the function at the given point. A( x ) = (x + 2 ); (6 , 4 ) y = Need Help? Watch It 21. [-/2 Points] DETAILS TANAPMATH7 9.3.018.NVA MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find the slope of the tangent line to the graph of the function at the given point. f(x) = -3x + 6 at (-1, 9) m= Determine an equation of the tangent line. Need Help? Watch It 22. [-/4 Points] DETAILS TANAPMATH7 9.3.016.MI.NVA MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. f( x ) = 4x2 + 7x Step 1: f ( x + h ) = Step 2: f ( x + h ) - f ( x ) = Step 3: f ( x + h ) - f ( x ) _ h Step 4: f'( x ) = lim f( x + h) - f( x ). Need Help? Master It 23. [-/3 Points] DETAILS TANAPMATH7 9.3.031.NVA MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER During the construction of a high-rise building, a worker accidentally dropped his portable electric screwdriver from a height of 256 ft. After t sec, the screwdriver had fallen a distance of s = 16t2 ft. (a) How long did it take the screwdriver to reach the ground? 4 sec (b) What was the average velocity of the screwdriver between the time it was dropped and the time it hit the ground? ft/sec (c) What was the velocity of the screwdriver at the time it hit the ground? ft/sec Viewing Saved Work Revert to Last Response + 2