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Competition - post a photo you've taken of nature >>

C2 questions!!

How do I draw the graph of...

Sketch the graph of y = 3x, x ? ?, showing the coordinates of the point at which the graph meets the y-axis.

and

How do I do this logs question?

Express 2 loga 3 + loga 11 as a single logarithm to base a.

Thanks!
Reply 1
Avatar for Gibberish
Gibberish
OP
2
The graph is y=3 (pwrx)
Reply 2
Avatar for Gibberish
Gibberish
OP
2
.....?
Reply 3
Avatar for chou246
chou246
8
Original post by Gibberish
How do I draw the graph of...

Sketch the graph of y = 3x, x ? ?, showing the coordinates of the point at which the graph meets the y-axis.

and

How do I do this logs question?

Express 2 loga 3 + loga 11 as a single logarithm to base a.

Thanks!


The logs one is:

loga (3^2) +loga 11
= loga (9 x 11) = loga 99

Can you write out the sketch question again with brackets and things?
Reply 4
Avatar for tehforum
tehforum
20
Original post by Gibberish
The graph is y=3 (pwrx)


3^x is a normal exponential graph, crossing the y axis at (0,1)

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