Algebra 1 Diagnostic Test

Front

What does the inequality n <= -1 represent on a number line?

Back

It represents all numbers less than or equal to -1, including -1 itself.

Front

What is the product of 0.4899 and 0.8124 approximately?

Back

Approximately 0.4.

Front

How do you calculate the total cost of an item with sales tax?

Back

Total cost = Price + (Price × Sales Tax Rate). For example, for a shirt priced at $8.95 with a 4.5% tax, it would be 8.95 + (8.95 × 0.045).

Front

What equation can Stacey use to find the number of customers needed to earn $25?

Back

0.5x + 15 = 25, where x is the number of customers.

Front

What does the equation y = -5 represent on a graph?

Back

It represents a horizontal line where the y-coordinate is always -5.

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 is the purpose of using sales tax in a purchase?

Back

Sales tax is an additional charge added to the price of goods and services, collected by the seller and paid to the government.

Front

How do you find the slope of a line given two points?

Back

Slope (m) = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are the coordinates of the two points.

Front

What does the term 'product' mean in mathematics?

Back

The product is the result of multiplying two or more numbers together.

Front

What is the difference between an equation and an inequality?

Back

An equation states that two expressions are equal, while an inequality shows that one expression is greater than or less than another.