Math Problem Statement

Selidiki apakah persamaan yang berikut merupakan suatu fungsi atau bukan? Berikan alasan yang mendasari jawaban anda.

a. x ^ 2 + y ^ 2 = 9

b. xy + y + 3y = 4

c. x = sqrt(3y + 1)

d. 3x = y/(y + 1)

Solution

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Math Problem Analysis

Mathematical Concepts

Functions
Equations
Algebra
Geometry

Formulas

Equation of a circle: x^2 + y^2 = r^2
Function solving: y = 4 / (x + 4)
Square root equation: x = sqrt(3y + 1)
Linear equation: x = y / 3(y + 1)

Theorems

Definition of a function: Each input has one and only one output
Properties of circles and their equations
Square root properties

Suitable Grade Level

Grades 10-12