8th Math STAAR Blitzkrieg ROUND 2

Front

What is a linear equation?

Back

A linear equation is an equation that makes a straight line when it is 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 does it mean for two quantities to be equal?

Back

Two quantities are equal when they have the same value. In equations, this is represented by the equal sign (=).

Front

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

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, representing the value of y when x is 0.

Front

What is the difference between a fixed cost and a variable cost?

Back

A fixed cost does not change with the level of output (e.g., entry fees), while a variable cost changes with the level of output (e.g., cost per class).

Front

How do you write an equation for a real-world scenario?

Back

Identify the fixed and variable costs, define variables for the unknowns, and set up an equation that represents the relationship between the costs.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, or not equal to the other.

Front

What does the symbol '<' represent in an inequality?

Back

The symbol '<' means 'less than'. It indicates that the value on the left is smaller than the value on the right.

Front

How do you solve a linear equation?

Back

To solve a linear equation, isolate the variable on one side of the equation using inverse operations.