The function f is given in three equivalent forms. Which form most quickly reveals the y-intercept?
Choose 1
А. f(x) = + (x – 5)^2 - 2
B. f(x) = 1/2(x - 3)(x - 7)
C. f(x) = 1/2x^2 - 5x+21/2
What is the y-intercept?

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.