Tom counted the number of cards in his collection for 10 weeks. By week 5, he had collected 12 cards. This graph shows this information. How many weeks did it take to have 15 cards collected? 7 weeks 8 weeks 9 weeks 10 weeks A coordinate graph with 10 points. The first point is to the right of 4 and above 1. The second point is to the right of 6 and above 2. The third point is to the right of 8 and above 3. The fourth point is to the right of 9 and above 4. The fifth point is to the right of 12 and above 5. The sixth point is to the right of 13 and above 6. The seventh point is to the right of 14 and above 7. The eighth point is to the right of 15 and above 8. The ninth point is to the right of 18 and above 9. The tenth point is to the right of 20 and above 10.

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.