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matrenka [14]
3 years ago
6

If (-2, y) lies on the graph of y = 3Y, then y =

Mathematics
2 answers:
Artist 52 [7]3 years ago
8 0

Answer:

\displaystyle \frac{1}{9}

Step-by-step explanation:

Hi there!

This question is asking us what the value of <em>y</em> is when <em>x</em> is -2, hence the point (-2,y).

y=3^x

To find <em>y</em>, replace <em>x</em> in the equation with -2 and evaluate:

y=3^-^2

When a^-^n where <em>n></em>0, a^-^n=\displaystyle \frac{1}{a^n}:

y=\displaystyle \frac{1}{3^2} \\\\y=\displaystyle \frac{1}{9}

I hope this helps!

kumpel [21]3 years ago
5 0
Answer:

y = 1/9

Step-by-step explanation:

(-2, y) = (x, y)

y = 3^x

y = 3^(-2)

y = 1/9

Therefore y = 1/9
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