## Barrelracing one year ago Which of the following statements have the same result? Explain each step in solving each one. f(2) when f(x) = 3x + 2 f−1(3) when f(x) = 2 x minus 7, all over 3 2y + 14 = 4y − 2

1. Barrelracing

2. Barrelracing

@freckles

3. michaelac959

do you know how to do these?

4. Barrelracing

no

5. misty1212

HI!!

6. Barrelracing

hi

7. michaelac959

hi!!!!!!

8. misty1212

$f(2)$ when $f(x)=3x+2$ is $f(2)=3\times 2+2=8$

9. Barrelracing

how did you find that can you show your work so i can better understand it please

10. michaelac959

11. michaelac959

i did this for algabra 1 in the 8th grade

12. misty1212

$f^{-1}(3)$ when $f(x)=\frac{2x-7}{3}$means solve $\frac{2x-7}{3}=3$

13. michaelac959

i can go get my book and explain it

14. misty1212

@Barrelracing are you asking how i found $$f(2)$$?

15. Barrelracing

How did you find anyone of the problems? like can you show the work please?

16. michaelac959

what math is this?

17. Barrelracing

algebra 2

18. misty1212

there are 3 questions the first one is to find $$f(2)$$ for $$f(x)=3x+2$$

19. michaelac959

ok gimme a sec to find my algebra 2 book

20. misty1212

do do that, where you see an $$x$$ replace it by a $$2$$

21. misty1212

since $f(x)=3x+2$ you have $f(2)=3(2)+2=6+2=8$

22. michaelac959

ok i got it

23. michaelac959

here is the page

24. michaelac959

it explains how to do it

25. Barrelracing

makes since what about the other 2?

26. Barrelracing

Misty i really need your help. i am not cheating for anything this is just an example in my lesson i didnt understand @misty1212

27. Barrelracing

for anyone who needs the answer f(x) = 3x + 2 f(2) = 3(2) + 2 6+2 8 2(3) - 7/3 6 - 7/3 -1/3 -3 2y + 14 = 4y - 2 16 = 2y 8 = y