Find the domain and graph the function.
-f(x) = 4x + 9
A) D: $( - \infty , \infty )$
B) D: $( - \infty , \infty )$
C) D: $[ 0 , \infty )$
D) D: $( - \infty , \infty )$

Question

Find the domain and graph the function.
-f(x) = 4x + 9  
A) D: $( - \infty , \infty )$ 
B) D: $( - \infty , \infty )$ 
C) D: $[ 0 , \infty )$ 
D) D: $( - \infty , \infty )$

Quizplus · Accepted Answer

Since there are no restrictions on the input values for the function, the domain is all real numbers, or $(-\infty, \infty)$. The graph of a linear function is a straight line, and since the coefficient of x is positive in this case, the line will have a positive slope.

Find the Domain and Graph the Function (−∞,∞)( - \infty , \infty )(−∞,∞)

Find the Domain and Graph the Function $( - \infty , \infty )$