Posted by **Anonymous** on Thursday, January 7, 2010 at 8:50pm.

I have a few problems I need you to take a look at and tell me if I arrived at the right answer.

1. I am to use the intercepts to graph the equation x+3y=6

I used the formula y=mx+b using 3 and -6 for x I got these as my ordered pairs to graph (3, 1), (-6, 4)…Is this correct? I also got these two ordered pairs (0, 2) (3, 1)

2. Multiply -2/1*(-6/1): I got 12

3. Solve 3+4x<27 I got <6

4. Solve the compound inequality: 6>-4x+5 or 9 <(or equal to)-4x+2

My answer was (-oo,-7/4]u(-1/4,oo)

5. Is (5,2) a solution to 4x-2y=-6 I said no

6. Decide if the line is parallel, perpendicular or neither

5x+4y=2

4x-5y=4 I said neither

7. Solve using elimination: 5r-3s=11

3r+5s=61 I got (7, 8)

8. Graph using slope and y intercept: y=4/3x+3 I graphed (0, 3) and (3, 7)

9. Solve using elimination

2x+3y=1

4x+6y=2

I got 0…there is no solution

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