Question 1

An equation that defines y as a function of x is given. Rewrite the equation using function notation f(x).
-$$8 x + 5 y = 7$$

Accepted Answer

A)  $f ( x ) = 8 x - 7$ 
B)  $f ( x ) = - \frac { 8 } { 5 } x + \frac { 7 } { 5 }$ 
C)  $f ( x ) = \frac { 8 } { 5 } x + \frac { 7 } { 5 }$ 
D)  $f ( x ) = \frac { 8 } { 5 } x - \frac { 7 } { 5 }$ 
A)  $f ( x ) = 8 x - 7$ 
B)  $f ( x ) = - \frac { 8 } { 5 } x + \frac { 7 } { 5 }$ 
C)  $f ( x ) = \frac { 8 } { 5 } x + \frac { 7 } { 5 }$ 
D)  $f ( x ) = \frac { 8 } { 5 } x - \frac { 7 } { 5 }$

Question 2

Give the domain and range of the relation.
-$$y = 4 x ^ { 9 }$$

Accepted Answer

A)  domain: $( \infty , \infty )$; range: $[ - 4 , \infty )$ 
B)  domain: $( - \infty , \infty )$; range: $[ 4 , \infty )$ 
C)  domain: $( - \infty , \infty )$; range: $( \infty , \infty )$ 
D)  domain: $( - \infty , \infty )$; range: $[ 0 , \infty )$ 
A)  domain: $( \infty , \infty )$; range: $[ - 4 , \infty )$ 
B)  domain: $( - \infty , \infty )$; range: $[ 4 , \infty )$ 
C)  domain: $( - \infty , \infty )$; range: $( \infty , \infty )$ 
D)  domain: $( - \infty , \infty )$; range: $[ 0 , \infty )$

An equation that defines y as a function of x is given. Rewrite the equation using function notation f(x). - $8 x + 5 y = 7$

Give the domain and range of the relation. - $y = 4 x ^ { 9 }$

Review of Basic Concepts

Equations and Inequalities

Polynomial and Rational Functions

Inverse, Exponential, and Logarithmic Functions

Trigonometric Functions

The Circular Functions and Their Graphs

Trigonometric Identities and Equations

Applications of Trigonometry

Systems and Matrices

Analytic Geometry

Further Topics in Algebra

Filters

Exam 3: Graphs and Functions

An equation that defines y as a function of x is given. Rewrite the equation using function notation f(x). - 8x+5y=78 x + 5 y = 78x+5y=7

Give the domain and range of the relation. - y=4x9y = 4 x ^ { 9 }y=4x9