Y is inversely proportional to x. Given that y = 12 and x = 6. Find the value of y when x = 8.

Mathematics

2 answers:

vazorg [7]3 years ago

8 0

Answer:

Step-by-step explanation:

formula for inverse proportion is y = $\frac{k}{x}$

k is the constant of probability

to find k,

y is 12, x is 6

12 = $\frac{k}{6}$

so x = 12 × 6

∴ k is 72

so y = $\frac{72}{8}$

∴ y is 9

KIM [24]3 years ago

7 0

Y = 16____________gg

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Neko [114]

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we have that
y=2x
y=x²+2
y=2x²

using a graph tool
see the attached figure

We can affirm the following
the three graphs present the same domain-----> the interval (-∞,∞)

The range of the graph y=2x is the interval (-∞,∞)

The range of the graphs y=x²+2 and y=2x² is the interval [0,∞)

therefore
Teresa is not correct because the graph of y = 2x will not surpass the other two graphs since in the interval of [0, infinite) the three graphs present the same range