Question

PLEASE HELP

Consider the function f(x)=−2/3x+5 .

What is f(−1/2) ?

f(-1/2)=___

Answer 1

f( -
`(1)/(2))`) =
`(16)/(3)`

substitute x = -
`(1)/(2)` into f(x)

f( -
`(1)/(2)` = -
`(2)/(3)` × -
`(1)/(2)` + 5

=
`(1)/(3)` +
`(15)/(3)` =
`(16)/(3)`

Answer 2

Replace the x by -1/2

f(-1/2) = -2/3 * -1/2 + 5

= 1/3 + 5

= 5 1/3 or 16/3