Unit 2 On-level Review

Front

What is a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed. It can be written in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the point of intersection of two linear equations?

Back

To find the point of intersection, solve the two equations simultaneously. This can be done using substitution or elimination methods.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the rise over run (change in y over change in x).

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1, meaning they intersect at a right angle.

Front

How do you set up an equation for a word problem involving costs?

Back

Identify the fixed costs and variable costs, then express the total cost as a function of the number of items or people involved.

Front

What is a system of equations?

Back

A system of equations is a set of two or more equations with the same variables. Solutions to the system are the points where the equations intersect.

Front

What is the formula for calculating total cost in a scenario with fixed and variable costs?

Back

Total Cost = Fixed Cost + (Variable Cost per item * Number of items)