Write an equation in slope-intercept form for the line that passes through the given point and is parallel to the graph of the given equation: 1. (3,1), 2x+y=5
2. (-1,-2), 3x-y=5
Now perpendicular:
3. (-6,5), x-y=5
4. (-1,-7), 3x+12y=-6
5. (10,5), 5x+4y=8
6. (-3,5), 5x-6y=9

Please help

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Three friends are comparing the prices of various packages of golf balls at a sporting goods store. hector finds a package of 6 golf balls that costs $4.50.

The domain of the following relation: r: {(3, 5), (8, 6), (2, 1), (8, 6)} is (1 point) no domain exists {1, 5, 6} {3, 8, 2, 8} {2, 3, 8}