AC Math - 1st Semester Final Exam 2024

Front

What is the opposite of a number?

Back

The opposite of a number is the number that is the same distance from zero on the number line but in the opposite direction. For example, the opposite of 12 is -12.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is expressed as a quantity of one. For example, if a box of 35 diapers costs $6.99, the unit rate is $0.20 per diaper.

Front

How do you compare temperatures in degrees Celsius or Fahrenheit?

Back

To compare temperatures, you look at the numerical values. A higher number indicates a warmer temperature. For example, -20 degrees is colder than 0 degrees.

Front

What is a ratio?

Back

A ratio is a relationship between two numbers that shows how many times the first number contains the second. For example, the ratio 12:20 can be simplified to 3:5.

Front

How do you find the area of a parallelogram?

Back

The area of a parallelogram is found by multiplying the base by the height (Area = base × height). For example, if the base is 10 and the height is 8, the area is 80.

Front

What does it mean for a number to be negative?

Back

A negative number is a number that is less than zero. It is represented with a minus sign (-). For example, -5 is a negative number.

Front

What is the significance of zero in mathematics?

Back

Zero is a unique number that represents the absence of quantity. It is neither positive nor negative and serves as a reference point on the number line.

Front

How do you determine equivalent ratios?

Back

Two ratios are equivalent if they represent the same relationship between numbers. For example, 6:10 and 3:5 are equivalent ratios.

Front

What is the formula for finding the area of a rectangle?

Back

The area of a rectangle is found by multiplying the length by the width (Area = length × width).

Front

What is the concept of absolute value?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, the absolute value of -7 is 7.