Question

What is the zero of r(x)=8/3x-16?

a) -16
b) -6
c) 6
d) 16

Answer 1

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

Answer 2

we have

`r(x)=(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

`(8)/(3)x-16=0`

Adds
`16` both sides

`(8)/(3)x-16+16=0+16`

`(8)/(3)x=16`

Multiply by
`3/8` both sides

`x=16*(3)/(8)\\x=6`

therefore

the answer is the option C

`6`