Question

If $f\left(x\right)=\frac{2}{3}x+7$, find the value of $f\left(x\right)$ if $x=3$

• A. -6
• B. -2
• C. 6
• D. 9

Answer 1

The correct option is D 9

$\Rightarrow f\left(x\right)=\frac{2}{3}x+7$

As given $x=3$, then substitute the value of $x$ in the given equation

$\Rightarrow f\left(x\right)=\frac{2}{3}\times 3+7$

$\Rightarrow f\left(x\right)=2+7=9$