In which quadrant on the coordinate plane is (-a - 3, 2b - 5), if a = -4 and b = -5?

- a - 3 = x
Plug in -4 for a
= - (- 4) - 3
= 4 - 3
= 1

2b - 5
Plug in -5 for b
= 2(-5) - 5
= -10 -5
= -15

So (-a -3, 2b -5) = (1, -15)
Notice 1 is positive and -15 is negative.
This means (1,-15) is in the second quadrant.