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Mathematics 9 Online
OpenStudy (anonymous):

help

OpenStudy (anonymous):

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OpenStudy (anonymous):

please find the equation for the table

OpenStudy (anonymous):

log or exponential equation

OpenStudy (anonymous):

I got y=6^x

OpenStudy (mathmale):

Before you accept that as your answer, check it. Supposing that y=1, would x as predicted by your function y=6^x be 6?

OpenStudy (anonymous):

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OpenStudy (anonymous):

for that question, is the equation log5(x)

OpenStudy (mathmale):

Glad you found that mistake. Again I ask you to check your own function by substitution. Suppose x=5. What value for y does your formula predict?

OpenStudy (anonymous):

which question are you talking about

OpenStudy (mathmale):

It'd be better to post one question at a time, so to avoid any misunderstandings. Now I'm talking about the 2nd problem you've posted.

OpenStudy (mathmale):

You are proposing that the solution is y = log5(x) ("log to the base 5 of x"). Suppose x = 5. What value for y does your proposed formula give you?

OpenStudy (anonymous):

i don't have a calculator

OpenStudy (anonymous):

is it 1

OpenStudy (mathmale):

My attitude is that a calculator would be nice for checking your work, but that you do need to be able to evaluate something such as log to the base 5 of 5. Yes, the correct value of that is 1.

OpenStudy (anonymous):

so, that would be wrong

OpenStudy (mathmale):

It may be wrong. Let's start over with the SECOND problem. You've typed in a table. You propose that y=log to the base 5 of 5. How would you find y? Once you've found y, compare it to what the table gives you.

OpenStudy (anonymous):

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