Question

9. Positive and negative numbers are used to indicate elevations.
Which statement is true about the elevations 30 feet and -30 feet?
A They are both 30 feet above sea level.
B The elevations are each the same distance from sea level.
C They are both 30 feet below sea level.
D The elevation of 30 feet is farther from sea level than the elevation
of -30 feet.
Integer Opposite
A
B
C
D
11. Terri’s bank statement lists two transactions, one for -$48 and one for
-$51. Complete each statement to compare these values. Use “lesser” or
“greater”.
The integer -48 is than the integer -51,
but -$48 represents a amount spent than -$51.
12. Use the number line to find the absolute value of the integer for each point.
|A| =
|B| =
|C | =
|D| =
10. Use the number line to find the opposite of the integer for each point, and
then record each opposite in the table.

Answer 1

9. Answer: B. They are each the same distance (30 ft) from sea level.

11. Fill the blanks:
The integer -48 is greater than the integer -51, but -$48 represents a lesser amount spent than -$51.

10 and 12. I don’t have the number line or the locations of points A, B, C, D, so I can’t fill the table yet. Tell me the integer value for each point (or upload the number line) and I’ll give:
- the opposite of each integer (opposite of x is -x),
- the absolute value of each integer (|x| is the distance from 0; ignore the sign).

Examples: if A = -6 then opposite = 6 and |A| = 6; if B = 7 then opposite = -7 and |B| = 7.