All categories

3 years ago

Write a function rule based on the table below.

Mathematics

1 answer:

charle [14.2K]3 years ago

5 0

Answer:

$\large\boxed{f(x)=5x}$

Step-by-step explanation:

$\begin{array}{c|c}x&f(x)\\1&5\\2&10\\3&15\end{array}\\\\\\f(1)=5(1)=5\\f(2)=5(2)=10\\f(3)=5(3)=15\\\Downarrow\\f(x)=5x$

You might be interested in

What is 100 percent of 39

Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

4 0

3 years ago

P (n), given below, is the price P in dollars for n grams of vitamins.P(n)=0.4n+5.7Complete the following statements.

Amanda [17]

(a)

In the function P(n) = 0.4n +5.7, P(n) is price of n grams of vitamins. So for the function x = P(n); x is price of n grams of vitamins.

The inverse of function determine amount of the vitamins for the known price of x dollars. So answer is,

The amount of vitamins (in grams) for a price of x dollars.

(b)

Let P(n) = x, So

$x=0.4n+5.7$

Replace n by x and x by n in the given equation.

$n=0.4x+5.7$

Simplify the equation for x.

$\begin{gathered} n+0.4x+5.7 \\ n-5.7=0.4x \\ x=\frac{n-5.7}{0.4} \\ =\frac{10n-57}{4} \end{gathered}$

So inverse of function is after interchange of variables,

$P^{-1}(x)=\frac{10x-57}{4}$

(c)

Substitute 8.3 for x in the inverse equation to obtain the valur of P^-1(8.3).

$\begin{gathered} P^{-1}(8.3)=\frac{10\cdot8.3-57}{4} \\ =\frac{83-57}{4} \\ =\frac{26}{4} \\ =6.5 \end{gathered}$

So answer is 6.5.

7 0

1 year ago

Use summation notation to express each of the following calculations Add the scores and square the sum O 2(SX) Square each score

iragen [17]

Add the score and then square the sum.

By using the summation notation we can write the above statement is (Σx)²

Square each score and then add the squared values.

By using the summation notation we can write the above statement is Σx²

Subtract 2 point from each score and then add the resulting values.

By using the summation notation we can write the above statement is Σ(x-2)

Subtract 1 point from each score and square the resulting values. Then add the squared values.

By using the summation notation we can write the above statement is Σ(x-1)²

7 0

4 years ago

What is the percent of increase for a population that changed from 25,000 to 30,000?

Delvig [45]

Your answer would be 20% I believe

3 0

4 years ago

Read 2 more answers

Which graph shows the line y=35x−3?

elena-s [515]

Answer:

the last picture

Step-by-step explanation:

the one where the line hits the -3 mark on the y-axis

5 0

3 years ago

Read 2 more answers