For this, all you need to do is plug in the x and y values.
When adding, add the two x values together to get your final x value, and add your y values to get your final y value.
a + b = (3 + (-2), 2 + (-1))
a + b = (1, 1)
When subtracting, subtract the two x values from each other to get your final x value, and subtract your y values to get your final y value.
a - b = (3 - (-2), 2 - (-1))
a - b = (5, 3)
When multiplying set a by 2, all you need to do is distribute.
2a = (3x2, 2x2)
2a = (6, 4)
For this, all you need to do is multiply the x and y values in set a by 2, and multiply the x and y values in set b by 4. Then add the product of the x value in set a to the product of the x value in set b.
2a + 4b = (2(3) + 4(-2), 2(2)+ 4(-1))
2a + 4b = (6 + (-8), 4 + (-4))
2a + 4b = (-2, 0)
For the last one you just need to find the absolute value.
|a| = (3, 2)
If you have any further questions feel free to ask. Hope this helps.
