02.07.2021

F(-4); f(x) = x2 + x - 4

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24.06.2023, solved by verified expert
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Step-by-step explanation: In this problem,

we're asked to find f(-4) or the value of the function when x = -4.

To find the value of the function when x = -4,we simply plug in a -4 for

the x in our function and we have (-4)² + (-4) - 4 or 16 + -4 - 4 which is 8.

So f(-4) = 8.

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Mathematics
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P Answered by PhD

8

Step-by-step explanation: In this problem,

we're asked to find f(-4) or the value of the function when x = -4.

To find the value of the function when x = -4,we simply plug in a -4 for

the x in our function and we have (-4)² + (-4) - 4 or 16 + -4 - 4 which is 8.

So f(-4) = 8.

Mathematics
Step-by-step answer
P Answered by PhD
I'll focus on one example:    f(x)=x^2:    (-2,f(-2)) and (0,f(0)) 4)

Find the average rate of change of f(x) = x^2 from x = -2 to x = 0:
           f(0) - f(-2)           (0)^2 - (-2)^2)         0-4
arc = =  = = -2 (answer)
              0-(-2)                         2                    2
Mathematics
Step-by-step answer
P Answered by PhD
I'll focus on one example:    f(x)=x^2:    (-2,f(-2)) and (0,f(0)) 4)

Find the average rate of change of f(x) = x^2 from x = -2 to x = 0:
           f(0) - f(-2)           (0)^2 - (-2)^2)         0-4
arc = =  = = -2 (answer)
              0-(-2)                         2                    2
Mathematics
Step-by-step answer
P Answered by PhD
Function 1: 

f(x) = x - 3
f(0) = 0 - 3 = -3
f(6) = 6 - 3 = 3

Slope = \frac{-3-3}{6-0} = \frac{-6}{6} =-1

Function 2:

f(x) = -x
f(-4) = 4
f(2) = -2

Slope = \frac{4--2}{-4-2}= \frac{6}{-6}=-1

Function 3:

f(x) = x²
f(-2) = (-2)² = 4
f(0) = (0)² = 0

Slope = \frac{4-0}{-2-0}= \frac{4}{-2}=-2

Function 4:

f(x) = x³
f(-1) = (-1)³ = -1
f(1) = (1)³ = 1

Slope = \frac{-1-1}{-1-1}= \frac{-2}{-2}=1

Function 5:

f(x) = 2ˣ
f(0) = 2⁰ = 1
f(4) = 2⁴ = 16

Slope = \frac{1-16}{0-4}= \frac{-15}{-4}=3.75
Mathematics
Step-by-step answer
P Answered by PhD
Function 1: 

f(x) = x - 3
f(0) = 0 - 3 = -3
f(6) = 6 - 3 = 3

Slope = \frac{-3-3}{6-0} = \frac{-6}{6} =-1

Function 2:

f(x) = -x
f(-4) = 4
f(2) = -2

Slope = \frac{4--2}{-4-2}= \frac{6}{-6}=-1

Function 3:

f(x) = x²
f(-2) = (-2)² = 4
f(0) = (0)² = 0

Slope = \frac{4-0}{-2-0}= \frac{4}{-2}=-2

Function 4:

f(x) = x³
f(-1) = (-1)³ = -1
f(1) = (1)³ = 1

Slope = \frac{-1-1}{-1-1}= \frac{-2}{-2}=1

Function 5:

f(x) = 2ˣ
f(0) = 2⁰ = 1
f(4) = 2⁴ = 16

Slope = \frac{1-16}{0-4}= \frac{-15}{-4}=3.75
Mathematics
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P Answered by PhD

SI=(P*R*T)/100

P=2000

R=1.5

T=6

SI=(2000*1.5*6)/100

=(2000*9)/100

=180

Neil will earn interest of 180

Mathematics
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P Answered by PhD

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

Mathematics
Step-by-step answer
P Answered by PhD

For 1 flavor there are 9 topping

Therefore, for 5 different flavors there will be 5*9 choices

No of choices= 5*9

=45 

Mathematics
Step-by-step answer
P Answered by PhD

y=2x+15

where y=Value of coin

x=Age in years

Value of coin after 19 years=2*19+15

=$53

Therefore, Value after 19 years=$53

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