Question

Find the zero of the linear function. f(x)=-(5)/(2)x+20 The zero of the function is

Answer 1

the zero is x = 8

Explanation:

given

f(x) = -
`(5)/(2)` x + 20

to find the zero , set f(x) = 0 , that is

-
`(5)/(2)` x + 20 = 0 ( multiply through by 2 to clear the fraction )

- 5x + 40 = 0 ( subtract 40 from both sides )

- 5x = - 40 ( divide both sides by - 5 )

x = 8

the zero of the function is x = 8