Question

MEDAL FOR THE CORRECT ANSWER!

Given f(x) = the quantity of 5x+1/2 solve for f-1(8).

3

7

10

20

Answer 1

so is it

\[f(x) = \frac{5x +1}{2}\]

Answer 2

@campbell_st Yes :)

Answer 3

ok... to find the inverse let the original equation be

\[y = \frac{5x + 1}{2}\]

to find the inverse swap x and y

so \[x = \frac{5y + 1}{2} \]

now make y the subject of the equation.... this will give the inverse

Answer 4

@campbell_st first option?

Answer 5

it is