What are the explicit equation and domain for an arithmetic sequence with a first term of 6 and a second term of 2?
a) an = 6 - 2(n - 1); all integers where n > 1
b) an = 6 - 2(n - 1); all integers where n > 0
c) an = 6 - 4(n - 1); all integers where n > 0
d) an = 6 - 4(n - 1); all integers where n > 1

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.