4 years ago

What is the value of

Mathematics

1 answer:

LiRa [457]4 years ago

4 0

Answer:

Step-by-step explanation:

-8(17-12)

------------

-2(8-(-2)

= -8(5)

--------

-2(10)

= -40

----------

-20

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Which quadratic function in vertex form has a vertex at (−5 , −4) and passes through the point (−2 , −1)?

ioda

Answer:

y = 1/3(x + 5)^2 - 4

Step-by-step explanation:

The general vertex form is;

y = a(x-h)^2 + k

From the question, (h,k) are the coordinates of the vertex which is (-5,-4)

So we have

y = a(x + 5)^2 -4

So we need to get the leading coefficient

Simply substitute the point it passes through

x = -2 and y = -1

-1 = a(-2 + 5)^2 - 4

-1 = a(3)^2 -4

-1 = 9a -4

9a = 4-1

9a = 3

a = 3/9

a = 1/3

So the equation is;

y = 1/3(x + 5)^2 - 4

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3 years ago

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Answer:

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Step-by-step explanation:

using the rules of exponents

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given $(9^4)^{3}$ × $9^{-14}$

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