If (-2, y) lies on the graph of y = 3x, then y = -9 -6 1/9

Question

asked Apr 7, 2020 17.2k views

2 Answers

Storax · Answer 1 · 2020-04-13T01:50:25+0000

Answer: Second Option

y = -6

Explanation:

We have the following equation

y = 3x

We know that point (-2, y) belongs to the graph of y

Then to find the value of the coordinate and substitute the point in the equation and solve for y

y = 3(-2)

y = -6

Finally we have that
y = -6

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Note:

If the equation you wanted to write is:

y = 3 ^ x

So the value of y is:

$y = 3 ^(-2)\\\\y = (1)/(3^2)\\\\y = (1)/(9)$