Math Problem Statement

Se f(x)={5−9x22x2+5x<0,x≥0 , então f−1(y) para y<5 é igual a: Questão 1Escolha uma opção: a. −5−y√3 b. y−5√3√ c. y−5√2√ d. 5y−4√2√ e. 5−y√3

Solution

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Math Problem Analysis

Mathematical Concepts

Inverse Function
Quadratic Functions
Square Roots
Algebraic Manipulation

Formulas

f(x) = 5 - 9x² (for x < 0)
f(x) = 2x² + 5 (for x ≥ 0)
y = 5 - 9x² -> x = -√((5 - y) / 9)
y = 2x² + 5 -> x = √((y - 5) / 2)

Theorems

Inverse Function Theorem for Quadratics
Square Root Properties

Suitable Grade Level

Grades 10-12