All categories

2 years ago

Find the value of f(-4).

Mathematics

1 answer:

Alex2 years ago

4 0

Answer:

y = f(x) = f(-4) =-4 because the value of f is equal to -4

You might be interested in

How do you describe the end behavior of a graph?

timofeeve [1]

Answer:

The end behavior of a function [f] describes the behavior of the graph of the function [f] at the ends of the x-axis.

Step-by-step explanation:

I've done this last year and this is what I can come up with

7 0

1 year ago

Plz plz plz plz plz plz plz plz I need help plz show your work and explain plz

Inga [223]

Answer:

Step-by-step explanation:

I don’t know

4 0

3 years ago

Read 2 more answers

A 35-m tall building casts a shadow. The distance from the top of the building to the tip of the shadow is 38 m . Find the lengt

ivolga24 [154]

14.7-M is the correct answer. Your welcome

8 0

3 years ago

Read 2 more answers

What is the x-value of the solution to the system of equations?

ValentinkaMS [17]

Answer:

The solution to the system of equations is:

$x=4,\:y=-3$

Step-by-step explanation:

Given the system of equations

$5x + 4y =8$

$2x- 3y = 17$

solving the system of equations

$\begin{bmatrix}5x+4y=8\\ 2x-3y=17\end{bmatrix}$

$\mathrm{Multiply\:}5x+4y=8\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:10x+8y=16$

$\mathrm{Multiply\:}2x-3y=17\mathrm{\:by\:}5\:\mathrm{:}\:\quad \:10x-15y=85$

$\begin{bmatrix}10x+8y=16\\ 10x-15y=85\end{bmatrix}$

$10x-15y=85$

$-$

$\underline{10x+8y=16}$

$-23y=69$

$\begin{bmatrix}10x+8y=16\\ -23y=69\end{bmatrix}$

solve for y

$-23y=69$

Divide both sides by -23

$\frac{-23y}{-23}=\frac{69}{-23}$

$y=-3$

$\mathrm{For\:}10x+8y=16\mathrm{\:plug\:in\:}y=-3$

$10x+8\left(-3\right)=16$

$10x-24=16$

$10x=40$

Divide both sides by 10

$\frac{10x}{10}=\frac{40}{10}$

$x=4$

Thus, the solution to the system of equations is:

$x=4,\:y=-3$

7 0

2 years ago

Abdullah earns $10 an hour delivering newspapers on his bicycle . He started with $20 in his bank account. what is the rate and

elixir [45]

Explanation:

The equation for this problem can be modeled in y = mx + b form.

m represents the rate of change and b represents the initial value or constant.

y = 10x + 20

x represents the number of hours he spent delivering newspapers

y is his total money after whatever number of hours he worked

The rate is 10, because it determines how much money he earns for each hour.

The y-intercept is 20, representing the starting amount of money in his bank account.

6 0

3 years ago