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3 years ago

Which of the following equations is equivalent to b^y=x

Mathematics

1 answer:

zalisa [80]3 years ago

8 0

Step-by-step explanation:

$\text{De}\text{finition of logarithm}:\\\\\log_ab=c\iff a^c=b,\ \text{where}\ a>0\ \wedge\ a\neq1\ \wedge\ b>0\\\\\text{Therefore your answer is}\\\\\large\huge{\boxed{B.\ y=\log_bx}}\\\\\log_bx=y\iff b^y=x$

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Answer:

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Step-by-step explanation:

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3 years ago

Which of the following describes the graph of y = x² - 225?

lara [203]

Answer:

option 4. The graph has zeroes at x = 15 an x = -15 and it opens upward.

Step-by-step explanation:

we have

$y=x^{2} -225$

This is the equation of a vertical parabola open upward (the leading coefficient is positive)

The vertex represent a minimum

The vertex is the point (0,-225)

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3 years ago