I really need help with figuring out how to calculate b, I've been really confused. If f(x)=2x2−4x+6 , find f'(3) =8

Use this to find the equation of the tangent line to the parabola y=2x2−4x+6 at the point (3,12) . The equation of this tangent line can be written in the form y=mx+b where m is: 8

and where b is:

Assume cd | ab are parallel. find m2. a) x= 50° (b) x = 70° c) x = 30° d) x = 60

Is this a polynomial function? i need to know asap

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp