MOY Review

Front

What is 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 -4 is 4.

Front

How do you solve a linear equation like 3x - 6 = 3?

Back

To solve for x, first add 6 to both sides to get 3x = 9. Then, divide both sides by 3 to find x = 3.

Front

What does the expression -3(2) represent?

Back

The expression -3(2) represents the product of -3 and 2, which equals -6.

Front

How do you calculate a baby's weight after it has increased by a certain factor?

Back

To find the new weight, multiply the original weight by the factor. For example, if a baby weighs 7.25 lb and increases by 2.5 times, the new weight is 7.25 lb * 2.5 = 18.125 lb.

Front

What is the value of 8^3?

Back

8^3 means 8 multiplied by itself three times: 8 * 8 * 8 = 512.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.

Front

What does it mean for two expressions to be equivalent?

Back

Two expressions are equivalent if they have the same value for all values of their variables.

Front

How do you find the least absolute value among a set of numbers?

Back

To find the least absolute value, compare the absolute values of each number and choose the smallest one.

Front

What is the process for simplifying an expression like 200 + 8^3?

Back

To simplify, calculate 8^3 first, which is 512, then add it to 200: 200 + 512 = 712.

Front

What is the significance of the number line in mathematics?

Back

The number line visually represents numbers in order, showing their relative positions and distances from each other.