Find all real values of $x$ such that $f ( x ) = 0$.
$f ( x ) = \frac { 7 x - 5 } { 7 }$
A) $\frac { 5 } { 49 }$
B) $\pm \frac { 5 } { 49 }$
C) $\pm \frac { 5 } { 7 }$
D) $\frac { 5 } { 7 }$
E) $- \frac { 5 } { 7 }$

Question

Quizplus · Accepted Answer

To find the real values of $x$ for which $f(x) = 0$, set the function equal to zero and solve for $x$: $0 = \frac{7x - 5}{7}$. Multiplying both sides by 7 gives $0 = 7x - 5$, and adding 5 to both sides gives $5 = 7x$. Dividing both sides by 7 gives $x = \frac{5}{7}$.

Find All Real Values Of xxx Such That f(x)=0f ( x ) = 0f(x)=0

Find All Real Values Of $x$ Such That $f ( x ) = 0$