Pre-calculus question
What you did for this? Try once...
I got B. Is that correct?
No.. How you did, just show that..
Very easy to check the options. You can do that on your own.
When it says that y directly varies as x, then: \(y = kx\), find \(k\) from first given conditions..
Ohh so it's C?
Vera, what happened? You are telling only the answers...
If it is not B, then it would be C, if not, then it would be D, if not A, it can by anything...
Looks like you are just guessing..
Ok can you explain how to find the answer please? I'm a bit confused...
See, \(y = kx\), as I daid, You are giving y = 5 and x = 8 in first condition, just put that here, you will get answer by this only: \(5 = 8k\) implies \(k = 5/8\)
Put this value again in that equation: \[y = \frac{5}{8}x\] Which option???
That would be A...
Yes it is.. :)
Ok thanks!
\(\dagger\)
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