Accelerated Mathematics 8 Exam Practice

Front

What is interval notation?

Back

Interval notation is a way of writing subsets of the real number line. It uses parentheses and brackets to indicate whether endpoints are included or excluded.

Front

How do you solve an inequality?

Back

To solve an inequality, isolate the variable on one side of the inequality sign, and then express the solution in interval notation or graph it on a number line.

Front

What does 'undefined' slope mean?

Back

An undefined slope occurs when a line is vertical, meaning it does not have a defined rise over run.

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

How do you find the slope between two points?

Back

The slope (m) between two points (x1, y1) and (x2, y2) is calculated using the formula m = (y2 - y1) / (x2 - x1).

Front

What is a function?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Front

What is the y-intercept of a line?

Back

The y-intercept is the point where the line crosses the y-axis, represented as (0, b) in the equation y = mx + b.

Front

How do you determine if a relation is a function?

Back

A relation is a function if no vertical line intersects the graph of the relation more than once.

Front

What does the symbol 'U' represent in interval notation?

Back

The symbol 'U' represents the union of two sets, meaning the combination of all elements from both sets.

Front

What is the equation of a line with a given slope and point?

Back

To find the equation of a line with slope m passing through point (x1, y1), use the point-slope form: y - y1 = m(x - x1).