The function f(x) varies inversely with x and f(x) = 0.9 when x = 0.5. What is f(x) when x = 1.5?
A. 0.02
B. 0.03
C. 0.3
D. 0.75

(The answer is 0.3)

Respuesta :

the answer is D 0.75 hope this can help you

Answer:

Option C.  [tex]0.3[/tex]

Step-by-step explanation:

step 1

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form [tex]y*x=k[/tex] or [tex]y=k/x[/tex]

In this problem we have

[tex]f(x)=0.9,x=0.5[/tex]

Find the value of k

[tex]k=f(x)*x=0.9*0.5=0.45[/tex]

so

The inverse variation function is equal to

[tex]f(x)=0.45/x[/tex]

step 2

What is f(x) when [tex]x = 1.5[/tex]?

substitute the value of x in the function

[tex]f(1.5)=0.45/1.5=0.3[/tex]