7th 4.2 Exit Ticket

Front

What is the expression for the total number of species discovered if scientists found x new bird species, 4x + 18 new fish, 3x + 4 new amphibians, and 2x - 14 new reptiles?

Back

The expression is 10x + 8.

Front

How do you add the expressions (3x + 15) and (4x + 13)?

Back

Combine like terms: 3x + 4x + 15 + 13 = 7x + 28.

Front

What is the sum of the expressions (3d - 5) and (d + 3)?

Back

Combine like terms: 3d + d - 5 + 3 = 4d - 2.

Front

How do you find the sum of (3w - 8) and (-6w - 4)?

Back

Combine like terms: 3w - 6w - 8 - 4 = -3w - 12.

Front

What is a variable in algebra?

Back

A symbol, often a letter, that represents a number in mathematical expressions or equations.

Front

Define 'like terms' in algebra.

Back

Terms that have the same variable raised to the same power, which can be combined by addition or subtraction.

Front

What is the process of simplifying an algebraic expression?

Back

Combining like terms and reducing the expression to its simplest form.

Front

What does it mean to 'combine like terms'?

Back

It means to add or subtract terms that have the same variable and exponent.

Front

What is the distributive property in algebra?

Back

The distributive property states that a(b + c) = ab + ac, allowing you to multiply a single term by each term inside a parenthesis.

Front

How do you simplify the expression 2(x + 3) + 4?

Back

Using the distributive property: 2x + 6 + 4 = 2x + 10.