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3 years ago

The average rate of change of a function f(x) = x2 between x = 3 and x = 9 is

Mathematics

1 answer:

masya89 [10]3 years ago

6 0

Answer:

12.

Step-by-step explanation:

Average rate of change = (value of the function when x = 9 - value when x=3)

(9 - 3)

= f(9) - f(3) / (9-3)

= (9^2 - 3^2) / (9-3)

= 72 / 6

= 12.

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Select all of the following that are ordered pairs of the given function.

podryga [215]

Answer:

(-1, 5)

(0, 3)

(2, -1)

Step-by-step explanation:

we have

$f(x)=3-2x$

Remember that

If a ordered pair is a solution of the given function, then the ordered pair must satisfy the given function

<u><em>Verify each case</em></u>

case a) (-2, -1)

substitute the value of x and the value of y in the given function and compare the result

$-1=3-2(-2)$

$-1=7$ ---> is not true

therefore

Is not a ordered pair of the given function

case b) (-1, 5)

substitute the value of x and the value of y in the given function and compare the result

$5=3-2(-1)$

$5=5$ ---> is true

therefore

Is a ordered pair of the given function

case c) (0, 3)

substitute the value of x and the value of y in the given function and compare the result

$3=3-2(0)$

$3=3$ ---> is true

therefore

Is a ordered pair of the given function

case d) (1,0)

substitute the value of x and the value of y in the given function and compare the result

$0=3-2(1)$

$0=1$ ---> is not true

therefore

Is not a ordered pair of the given function

case e) (2, -1)

substitute the value of x and the value of y in the given function and compare the result

$-1=3-2(2)$

$-1=-1$ ---> is true

therefore

Is a ordered pair of the given function

6 0

2 years ago

Which relatives between x and y in the equation shows a proportional relationship?

tangare [24]

its B Step-by-step explanation:

3 0

3 years ago

NEED HELP ASAP, WILL GIVE BRAINLIEST

dangina [55]

Answer:

b.332.2

Step-by-step explanation:

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2 years ago

Are the expressions equivalent?<br>8(6f)=f(8.6)

s2008m [1.1K]

Answer: no

Step-by-step explanation: 48f does not equal 8.6f

5 0

2 years ago

14) A solid metallic block measures 1.5m long, 0.4m wide and 0.25m high. The solid is made of

GREYUIT [131]

Answer:

<h3>The answer is </h3><h3 /><h3>1125 Kg</h3>

Step-by-step explanation:

To find the mass in kg we must first convert the density from g/cm³ to kg/m³

That's 7.5 g/cm³ = 7500kg/m³

Density = mass / volume

Volume of block = 1.5 × 0.4 × 0.25

= 0.15m³

mass = Density × volume

= 7500 × 0.15

Hope this helps you

7 0

2 years ago