Algebra I Review (pt. 1 + 2)

Front

What is the distance formula used to find the distance between two points (x1, y1) and (x2, y2)?

Back

Front

How do you solve a system of equations using substitution?

Back

To solve a system using substitution, solve one equation for one variable, then substitute that expression into the other equation.

Front

What is point-slope form of a linear equation?

Back

Front

Translate the phrase '3 times the sum of a number and 4' into an algebraic expression using variable x.

Back

Front

What does it mean for two lines to be parallel in terms of their slopes?

Back

Two lines are parallel if they have the same slope and different y-intercepts.

Front

Back

Front

What is the slope-intercept form of a linear equation?

Back

Front

What is the definition of a variable in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value.

Front

How do you translate 'the difference of a number x and 7' into an algebraic expression?

Back

Front

What is the formula for the area of a rectangle?

Back