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4 years ago

The table shows the values of a function f(x).

Mathematics

1 answer:

ANTONII [103]4 years ago

7 0

Answer:

-5

Step-by-step explanation:

To find the average rate of change, take the point on either end of the table (-2,25) and (3,0). Find the difference in y values and the difference in x values. Write it as a fraction vertical over horizontal.

(25 - 0) = 25

-2 - 3 = -5

25/-5 = -5

The average rate of change is -5.

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The slope would be -2.

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3 years ago

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Step-by-step explanation:

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Read 2 more answers

A thermometer is taken from a room where the temperature is 23oC to the outdoors, where the temperature is −9oC. After one minut

Helga [31]

Answer:

$(a)\ 15\textdegree C\\(b)\ After\ 3\ minutes\ and\ 52.5\ Seconds\ from\ start$

Step-by-step explanation:

Temperature in the room $=23\textdegree C$

Decrease in the temperature(outdoors) $=23-15=8\textdegree C$ in $1\ minute$ .

Rate of decrease $=8\textdegree C/minute$

$Let\ after\ x\ minutes\ temperature\ is\ y\\y=23-8x\ \ \ \ y\geq -9\textdegree C$

(a) After $4\ more\ minutes\ total\ time\ is=1+4=5\ minutes$

$y=23-5\times 8\\y=-17\\$

But it is not possible as outdoor temperature is $-9\textdegree C$ so after $-9\textdegree C$ temperature decrease will not occur.

Hence after $4$ more minutes temperature= $-9\textdegree C$

(b) Let after $t\ minutes$ temperature is $-8\textdegree C$

Here $x=t,\ y=-8\textdegree C$

$-8=23-8x\\8x=23+8\\8x=31\\x=\frac{31}{8}\\x=3.875\ minutes=3\ minutes\ and\ 52.5\ seconds$

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3 years ago

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Answer:

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Step-by-step explanation:

brainly.com/question/5872696

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4 years ago

If f(x) = -3x - 5 and g(x) = 4x - 2, find (f - 9(x).

bogdanovich [222]

Answer:

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