3 years ago

A linear function f(x) is shown on the table. What is the value of f(4)

1 answer:

3 0

F(x)=y

y is considered to be the value of f(x)

Looking at a table, when x=4, the corresponding y value is the value of f(4)

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If y varies inversely as x and y is 2.5 when x is 6, what is y when x is 4? a. 3.75 b. 1.67 c. 0.1 d. 7.5 Please select the best

REY [17]

Because y varies inversely as x, therefore
$y= \frac{k}{x}$
where k = constant.

When x = 6, y = 2.5. Ther efore
$\frac{k}{6} = 2.5$
Cross multiply.
k = 6 x 2.5 = 15

The equation is
$y = \frac{15}{x}$

When x = 4, obtain
$y = \frac{15}{4}= 3.75$

Answer: a. 3.75

8 0

3 years ago

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Which of the following is a polynomial?

Zanzabum

Answer:

I'm pretty sure A is the correct answer :)

(x-2)(x^4+3) is a polynomial

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3 years ago

!!!URGENT!!!

aleksklad [387]