1. What is a Quadratic Equation? A quadratic equation is an equation where the highest power of the variable is 2. General form: Where: and are numbers is the unknown (variable). Examples: Not quadratic: (power is 3 ❌) Not quadratic: (power is 1 ❌) 2. Ways to Solve Quadratic Equations For beginners, we learn 3 […]
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What are Rational Numbers? A rational number is any number that can be written in the form: p = numerator q = denominator Examples (a) (b) (c) (d) Not Rational (i) (ii) (iii) (recurring without pattern) Types of Rational Numbers (a) Integers All integers are rational numbers: (b) Fractions Proper fraction: Improper fraction: Mixed number:
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Numbers play significant roles in everyday life — in business for buying and selling; for measuring of a patient’s vitals (weight, temperature, rate of heartbeat etc.) in the hospital; for checking the speed limit of a moving vehicle when driving; to represent the quantities of food substances that should be combined to constitute a balanced
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