Answer:
x-axis: (18, 0)
y-axis: (0, 12)
quadrant I: (4.5, 10.6)
quadrant II: (-15, 21)
quadrant III:
quadrant IV: (3, -7)
Step-by-step explanation: (view attached screenshot)
(18, 0) is 18 units left, 0 units up. This make the point line up exactly on the x-axis
(0, 12) is 0 units left, and 12 units up. This will cause it to be in the line of y-axis.
(4.5, 10.6) both x and y values in the point are positive, this means that it's in the first quadrant
(-15, 21) x value is negative, y value is positive. This means that the point is in the second quadrant
both x and y values are negative. This means that the point is in the third quadrant.
(3, -7) x value is positive, y value is negative. This means that it's in the fourth quadrant.