2. Find the slope from first principles of f(x) = Vx+2 at (-1, 1) 5. Find the following limit lim V7x+9 -18x+9 1'->0 V3x+4-V2x +4 7. A construction worker drops a bolt while working on a high-rise building, 320m above the ground. After t seconds, the bolt has fallen a distance of s meters, where s(t) = 320 - 5t2. 9A/2C a. Find the average velocity during the eighth second.(2) b. Find the velocity of the object when t = 2. (4) c. At what velocity does the bolt hit the ground?(3) Thinking Question 1. Determine the equation of the line that passes through (5, 1) and is parallel to the line tangent to f(x) = 2_15 x at x=4 X (A 15 ) - 6T/2C X 2. Find constants a and b such that f(x) is continuous for all values of x. 3T/2C [ax + 3, x>5 f(x) =18, x=5 x ' + bx + a, x