Algebra 1 Midterm Review

Front

What is the simplified form of the expression xy^-7?

Back

The simplified form is \frac{x}{y^7}.

Front

How do you write 0.0005 in scientific notation?

Back

0.0005 in scientific notation is 5 x 10^(-4).

Front

Solve for x: 3.5(8x - 6) = 21

Back

x = 1.5.

Front

Solve for x: \sqrt{x} - 3 = 5

Back

x = 64.

Front

Evaluate the expression using the quotient rule: 9^9 / 9^4

Back

The result is 9^5.

Front

What is the definition of a variable in algebra?

Back

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

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

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 is the quadratic formula?

Back

The quadratic formula is x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}.

Front

What does it mean to factor an expression?

Back

Factoring an expression means to break it down into simpler components that, when multiplied together, give the original expression.