Mathematics KSSM Form 2 Chapter 3 Algebraic Formulae

What is a linear equation?

• A linear equation is an equation of the first degree, meaning it has no variables raised to a power greater than one.

• A linear equation is an equation that represents a curve on a graph.

• A linear equation is an equation that has multiple solutions and is not confined to a straight line.

• A linear equation is an equation that includes variables raised to the second power or higher.

Given a² = 8b - 5c. Calculate the value of b when a = 1 and c = 3.

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• 2

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• 4

What does it mean to make a variable the subject of a formula?

• It means to eliminate the variable from the formula entirely.

• It means rearranging the formula to isolate that variable on one side.

• It means to substitute the variable with a constant value.

• It means to change the variable into a different type of variable.

What is the quadratic formula?

• x = (-b ± √(b² - 4ac)) / (2a)

• x = (b ± √(b² + 4ac)) / (2a)

• x = (-b ± √(b² + 4ac)) / (2a)

• x = (b ± √(b² - 4ac)) / (2a)

What is the process of evaluating an expression?

• Substituting values for variables and performing the arithmetic operations.

• Finding the maximum value of an expression.

• Simplifying an expression without substituting values.

• Graphing the expression on a coordinate plane.

Evaluate (y-2)/4 when y = 18.

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m = p². Express p in terms of m.

• m

• m²

• √m

• m/2

Given T = 4k. Make k as the subject.

• T/4

• 4T

• T/2

• T*4

What is the difference between a variable and a constant?

• A variable is a symbol that represents an unknown value, while a constant is a fixed value.

• A variable is a fixed value, while a constant is a symbol that represents an unknown value.

• A variable can only hold integer values, while a constant can hold any type of value.

• A variable is a type of constant that can change its value over time.

Find the value of 4(3+h) when h= -2.

• 0

• 4

• -4

• 8