Math Problem Statement

The image contains several mathematical questions based on functions, transformations, and expressions.

Solution

The image contains several mathematical questions based on functions, transformations, and expressions. Here's a breakdown of each question:

  1. Question 01:
    The function ff is defined by f(x)=2x27x+2f(x) = 2x^2 - 7x + 2, xRx \in \mathbb{R}.
    (i) Express ff in the form f(x)=a(xh)2+kf(x) = a(x - h)^2 + k, where a,h,ka, h, k are constants.

  2. Question 02:
    The function is defined by h(x)=6x32x2+x+1h(x) = 6x^3 - 2x^2 + x + 1, xRx \in \mathbb{R}.
    (i) Express h(x)h(x) in the form of ax3+bx2+cx+dax^3 + bx^2 + cx + d, where a,b,c,da, b, c, d are constants.

  3. Question 03:
    The function is defined by f(x)=x3+1.5x6f(x) = x^3 + 1.5x - 6, xRx \in \mathbb{R}.
    (i) Solve f(x)=0f(x) = 0 in the interval 3x3-3 \leq x \leq 3, using intervals of length 0.5.

  4. Question 04:
    The function is defined by g(x)=1x24g(x) = \frac{1}{x^2} - 4, xRx \in \mathbb{R}.
    (i) Express g(x)g(x) in the form of a(1x2)+ba \left( \frac{1}{x^2} \right) + b, where aa and bb are constants.

  5. Question 05:
    The function is defined by f(x)=1.2x7f(x) = 1.2x - 7, xRx \in \mathbb{R}.
    (i) Express f(x)=0f(x) = 0 for x[4,5]x \in [-4, 5].

Would you like a detailed solution for any of these questions? Here are some related questions to deepen your understanding:

  1. How can we complete the square for a quadratic function like in Question 01?
  2. What method can be used to solve cubic equations such as in Question 03?
  3. What are the transformations that take place when converting a general function to its vertex form?
  4. How does the interval of approximation in Question 03 help in finding roots?
  5. What are common techniques for expressing rational functions in terms of simpler constants?

Tip: To convert quadratic functions to vertex form, always start by factoring out the coefficient of x2x^2 and completing the square on the remaining terms.

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Math Problem Analysis

Mathematical Concepts

Algebra
Functions
Quadratic Functions
Cubic Equations
Rational Functions

Formulas

Quadratic function in vertex form: f(x) = a(x - h)^2 + k
Cubic function: ax^3 + bx^2 + cx + d
Solving equations f(x) = 0
Rational function: a(1/x^2) + b

Theorems

Quadratic Transformation
Factorization
Completing the Square
Interval Method for Approximating Roots

Suitable Grade Level

Grades 9-12