3. A line has a slope of 4 and a y-intercept of 3. Find a vector equation of the line. a) [x, y] = [0,3] + [[1,4] Work: c) [x, y] = [3,0] + t[1,4] b) [x, y] = [− 1, - 4] + [[0,3] d) [x, y] = [0,3] + [[4,1] 4. Write the scalar equation of the plane with normal vector n = the point (6, 5, 4). - [2, 2, 5] and passing through a) 2x + 2y 5z+ 2 = 0 c) 2x+2y5z - 2 = 0 Work: b) 6x+5y4z + 2 = 0 - d) 6x+5y 4z − 2 = 0 -