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4 years ago

Is y = 7x^9 an exponential function?yes or no

Mathematics

2 answers:

Dimas [21]4 years ago

8 0

Answer:

Step-by-step explanation:

Exponential function:

$y = a \times {b}^{x}$

In this function, b cannot be a variable in which this case is x. Also, 9 cannot be an exponent. If you were to switch the the "x" and the "9," then it would be an exponential function.

Harlamova29_29 [7]4 years ago

4 0

No
For a function to be an exponential function, x must be in the exponent. In this function the exponent is 9.

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2 Select the correct answer. What is the inverse of function ? F(x)=10/9x+11 A.f-1(x)=9x-99/10 B.f-1(x)=9/10x+11 C.f-1(x)=9x+11/

Lilit [14]

Consider f(x)=y.

$\begin{gathered} f(x)=y \\ x=f^{-1}(y) \end{gathered}$

Simplify the equation f(x)=y to obtain the value of x in terms of y.

$\begin{gathered} f(x)=y \\ \frac{10}{9}x+11=y \\ \frac{10}{9}x=y-11 \\ 10x=9y-99 \\ x=\frac{9y-99}{10} \end{gathered}$

So inverse of function is,

$f^{-1}(x)=\frac{9y-99}{10}$

Correct nswer is A part.

6 0

1 year ago

Six less than one-third of the sum of a number and four is negative two.

Helga [31]

1/3(n + 4) - 6 = -2 <== ur equation
1/3n + 4/3 - 6 = -2 ...multiply by 3
n + 4 - 18 = - 6
n - 14 = -6
n = -6 + 14
n = 8 <== ur number

4 0

4 years ago

Write the first 4 terms of the sequence defined by the rule f(n) = 3n + 1.

iren [92.7K]

Answer:

Step-by-step explanation:

First of all, your question is very clear. Excluding 0 is a needed restriction.

f(1) = 3*1 + 1 = 3 + 1 = 4

f(2) =3*2 + 1 = 6 + 1 = 7

f(3) = 3*3 + 1 = 9 + 1 = 10

f(4) = 4*3 + 1 = 12 + 1 = 13

4,7,10,13

Notice that you are just adding 3 to the previous term.

4 0

3 years ago

89% of what number is 14

MariettaO [177]

Answer:

D: 14 = 0.89 x n; 15.7

Step-by-step explanation:

To get 89% of a number you have to multiply that number by 0.89

8 0

3 years ago

−3=34r+2 What is the solution to the equation? <br>Last question!!!!

Delvig [45]

-6.8=r is the answer I go I hope it helps

4 0

4 years ago

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Is y = 7x^9 an exponential function?yes or no​

Is y = 7x^9 an exponential function?yes or no