7th Grade Math: 1st Semester Review

Front

What is the simplified form of y + x + y + y + x?

Back

2x + 3y

Front

If a submarine is at an elevation of -35 feet and rises 35 feet, what is its new elevation?

Back

0 feet

Front

What is the constant of proportionality in a proportional relationship?

Back

The constant of proportionality is the ratio between two proportional quantities.

Front

How can you determine if a table of values is proportional?

Back

A table is proportional if the ratio of the y-values to the x-values is constant.

Front

Solve the inequality: 3x + 2 > 14. What is the solution for x?

Back

x > 4

Front

What is the definition of a variable in mathematics?

Back

A variable is a symbol used to represent an unknown value.

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional if they maintain a constant ratio.

Front

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

Back

Area = length × width.

Front

What is the definition of an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equality sign, while an equation does.