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MATH 1280 FINAL EXAM LATEST 2024 ACTUAL EXAM
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MATH 1280 FINAL EXAM LATEST 2024 ACTUAL EXAM
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MATH 1280 FINAL EXAM LATEST 2024 ACTUAL EXAMQUESTIONS AND CORRECT DETAILED ANSWERS
What is the difference between the absolute value of 4 and the absolute value of -3?
- ANSWER: 1
4
7
8 "incorrect"
Brandie lives on the twelfth floor of her apartment building. She walks down 2 flights
to visit a friend, then up 3 flights to deliver a message to a neighbor. Which integer
best represents the number of flights Brandie must walk to get back to her starting
point? - ANSWER: -1
Javier writes an integer on a piece of paper. The absolute value of his number is less
than 4. Which is true of the possible values of Javier's number? - ANSWER: The
possible values are less than 4. "correct"
The possible values are less than -4. "not correct"
The possible values are less than 4 but greater than -4.
The possible values are either greater than 4 or less than -4.
Jessica increases the temperature of a block of ice by 20º. Which integer represents
the amount by which Jessica must change the temperature for the block of ice to
return to its starting temperature? - ANSWER: -20
What is the difference between the absolute value of 4 and the absolute value of -3?
- ANSWER: 1
Jalen plots two integers on a horizontal number line. The leftmost integer is
negative. Which must be true of the second integer? - ANSWER: The second integer
is greater than the first integer.
Which situation is best represented using a negative integer? - ANSWER: the
temperature decreasing by 18º
The lowest recorded temperature in a town was 4ºF, without the windchill. With the
wind, the temperature felt like 10ºF below zero. On a number line, what is the
distance between the two temperatures? - ANSWER: 6
Yasmine finds the absolute value of -655. Which expression represents this value? -
ANSWER: 0-(-655)
A meteorologist used the expression below to describe how the temperature
changed.
, -5 + (-4)
Which statement could describe how the temperature changed? - ANSWER: The
temperature was -5 degrees, then it decreased 4 degrees.
The temperature at 9 a.m. is 2 degrees. The temperature rises 3 more degrees by
noon. Which expression describes the temperature at noon? - ANSWER: 2 + 3
Morena, a scuba diver, used the expression below to describe her position in relation
to sea level.
0 + (-15) + 6 - ANSWER: Morena started at sea level, dove down 15 feet, then rose up
6 feet.
What is the value of the expression?
-16+12 - ANSWER: -4
Rita is adding 3 + (-8) + 1. She rewrites the expression as 3 + (-1) + 8.
What is Rita's error?
She used the commutative property, which cannot be used with negative numbers.
In the new expression, -8 and 1 should both be negative.
She used the associative property which should only be used with positive numbers..
She switched the negative signs for -8 and 1. - ANSWER: She used the commutative
property, which cannot be used with negative numbers.
In the new expression, -8 and 1 should both be negative. "incorrect"
She used the associative property which should only be used with positive numbers..
She switched the negative signs for -8 and 1. "correct"
What is the value of x in the equation below?
-3 - (-8) - (-2) = x - ANSWER: 7
Alaina has $28 in her account. She wants to purchase a pair of shoes that costs $45.
If Alaina makes the purchase, which integer will represent the amount of money in
Alaina's account? - ANSWER: -17
What is the value of 3 - (-2)? - ANSWER: 5
What is the distance between -3 and 2 on the number line? - ANSWER: 5
Michael is using a number line to evaluate the expression -8 - 3.
After locating -8 on the number line, which step could Michael complete to evaluate
the expression? - ANSWER: Michael could rewrite the expression as -8 + -3 and move
3 spaces to the left.
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