Review of Grade 11 General Mathematics

These flashcards cover key terminology and concepts from the Grade 11 General Mathematics course, emphasizing definitions and significance.

Numeracy

The ability to understand and work with numbers effectively.

Indices

Exponents indicating the power to which a number is raised.

Surds

Irrational numbers represented as roots that cannot be simplified to remove the root.

Measurement

The process of quantifying an object's dimensions using standard units.

Rational number

Any number that can be expressed as the quotient of two integers.

Irrational number

A number that cannot be expressed as a fraction of two integers.

Factors

Numbers or expressions that can be multiplied together to yield a product.

Multiples

The product of a number and any integer.

Significant figures

Digits that carry meaningful information about the precision of a number.

Rounding error

The difference between the exact value and its approximation.

Laws of Indices

Rules governing the manipulation of powers and exponents, including multiplication, division, and raising powers.

Estimation

An approximation calculated to provide quick answers without exact values.

Metric system

A decimal-based measurement system used widely around the world, including units like meters and liters.

Imperial system

The measurement system traditionally used in the United States and the UK, including units like feet and gallons.

Quadratic equation

An equation of the form ax² + bx + c = 0, where a ≠ 0.

Vertex of a parabola

The highest or lowest point on a parabola, representing either a maximum or minimum value.

Axis of symmetry

A line that divides a figure into two mirror-image halves.

Discriminant

In a quadratic equation, the value calculated from b² - 4ac to determine the nature of the roots.

Rationalizing the denominator

The process of eliminating surds from the denominator of a fraction.