Question

What is the zero of r(x)=8/3x-16?a) -16b) -6c) 6d) 16

Answer 1

we have

$r(x)=\frac{8}{3}x-16$

we know that

The zero of the function is the value of x when the function is equal to zero

so

Equate the function r(x) to zero and find the value of x

$\frac{8}{3}x-16=0$

Adds $16$ both sides

$\frac{8}{3}x-16+16=0+16$

$\frac{8}{3}x=16$

Multiply by  $3/8$ both sides

$x=16*\frac{3}{8}\\x=6$

therefore

the answer is the option C

$6$

Answer 2

The answer is c, 8/3 (6) - 16 = 0 therefore 6 is the zero