Which point on the number line represents Elliot's height at age 11?
Point D.
How do you know that point D represents 4 feet?
It is 4 full units (spaces) away from zero.
Elliot grows half a foot between age 11 and age 12. Will his new height fall to the right or to the left of point D on the number line?
To the right.
How do you know that point E represents
It is halfway between 4 and 5. It is also 4 and a half units from zero.
If Elliot's sister is less than 4 feet tall, will her height be to the right or to the left of point D on the number line?
To the left.
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