What is the distance between the points (-30, -10) and (-30, 19) in the xy-plane?

Question

A.
29 units
B.
9 units
C.
20 units
D.
49 units

Answer 1

the 2ed digit to the first one is 10 and the 2 one to the 2 one is 19 how much does it take for 10 to get to 19

you can take 19-10 =9
or you can count 10 to 19 and see

the awencer is 9 because the 1st digits are the same

Answer 2

they are both on the vertical line x = -30
19-(-10) = 29 units apart
one is 19 above the x-axis, the other is 10 below the x-axis