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3 years ago

Determine if the function f is an exponential function. If so, identify the base. If not, why not? F(x)= x^ -3

Mathematics

1 answer:

Flura [38]3 years ago

7 0

Answer:

Not an exponential function. The exponent is a constant.

Step-by-step explanation:

An exponential function has the variable in the exponent. This function raises the variable to a fixed power, so it is not an exponential function.

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A student reads that a 95% confidence interval for the mean SAT math score of California high school seniors is 452 to 470. Aske

mestny [16]

Yes he is correct due to facts stated

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3 years ago

Please help i will give brainliest!!!

Shalnov [3]

D) (-2,3)

-2 is the x-value
3 is the y-value

If you look at the graph on the x-axis (horizontal line) the numbers are increasing and decreasing by 1.
Since the point of intersection (big blue dot) is on the left side of 0, it falls directly at the -2 mark
As for the y-axis (vertical lines) the numbers also increase and decrease by 1. The point of intersection falls above 0 at +3

Therefore your point of intersection is (-2,3)

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3 years ago

Calculate 10% of 80.

kow [346]

Answer:

Step-by-step explanation:

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3 years ago

What is the average rate of change of f over the interval -1 on a separate sheet of paper and upload the work as a photo. Show a

Anarel [89]

Answer:

Average rate of change for the function $f(x)= x^2-x-1$ over the interval -1<x<1 is -1

Step-by-step explanation:

We need to find average rate of change of f over the interval -1 < x < 1

The function given is: $f(x)= x^2-x-1$

The formula used to find average rate of change is:

$Average\:rate\:of\:change=\frac{f(b)-f(a)}{b-a}$

We have, a = -1 and b = 1

Finding f(b) when b=1

$f(x)=x^2-x-1\\f(1)=(1)^2-(1)-1\\f(1)=1-1-1\\f(1)=-1$

Now, finding f(a), when a= -1

$f(x)=x^2-x-1\\f(-1)=(-1)^2-(-1)-1\\f(1)=1+1-1\\f(-1)=2-1\\f(-1)=1$

Now, putting values and finding average rate of change

$Average\:rate\:of\:change=\frac{f(b)-f(a)}{b-a}\\Average\:rate\:of\:change=\frac{f(1)-f(-1)}{1-(-1)}\\Average\:rate\:of\:change=\frac{-1-(1)}{1-(-1)}\\Average\:rate\:of\:change=\frac{-1-1}{1+1}\\Average\:rate\:of\:change=\frac{-2}{2}\\Average\:rate\:of\:change=-1$

So, average rate of change for the function $f(x)= x^2-x-1$ over the interval -1<x<1 is -1

4 0

3 years ago

The scale on a map is 3 inches = 40 miles. How far apart are two cities if the distance between them on the map is 6¾ inches?

wel

Answer:

90 miles

Step-by-step explanation:

.............

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3 years ago