#### Answer

domain: $(-\infty,\infty)$

#### Work Step by Step

Since $f(x)=7x+15$ is a diagonal line, the domain is all real numbers: $(-\infty,\infty)$.

Published by
Brooks Cole

ISBN 10:
1305115546

ISBN 13:
978-1-30511-554-5

domain: $(-\infty,\infty)$

Since $f(x)=7x+15$ is a diagonal line, the domain is all real numbers: $(-\infty,\infty)$.

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