According to the empirical rule, 68% of 7-year-old
children are between
inches and
inches tall.

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

step-by-step explanation: 2