All categories

3 years ago

Which could be the entire interval over which the function, f(x), is negative?

Mathematics

2 answers:

lana [24]3 years ago

6 0

For this case we have a function of the form:

y = f (x)

Where,

x: independent variable

y: dependent variable

To answer the question, we must see in the table the values of the independent variable x, for which the values of the dependent variable f (x) are negative.

We have then that the interval that fulfills this condition is from minus infinity to minus 4 without including the 4.

Thus,

(–∞, –4)

Answer:

The entire interval over which the function, f(x), is negative is:

D) (–∞, –4)

GaryK [48]3 years ago

6 0

The answer is D I just took the test 100% right

You might be interested in

9. John bought a used truck for $4,500. He made an agreement with the dealer to put $1,500 down and make payments of $350 for th

kirza4 [7]

Answer:

11.111111111111111...%

6 0

3 years ago

The five members of the Traynor family each buy train tickets. During the train ride, each family member buys a boxed lunch for

larisa [96]

Let's assume

the price of each train ticket is x

we are given

total number of family members =5

so, total cost of ticket = total number of family members*the price of each ticket

so, total cost of ticket =5*x

so, total cost of ticket =5x

now, we have

each family member buys a boxed lunch for $6.50

so, total cost of lunch box = total number of family members*price of each lunch box

so, total cost of lunch box = 5*6.50

total cost of trip = total cost of ticket+total cost of lunch box

we are given

total cost of trip is $248.50

now, we can plug values

and we get

$248.50=5x+5*6.50$

now, we can solve for x

$248.50=5x+32.5$

$248.50-32.5=5x+32.5-32.5$

$216=5x$

$\frac{5x}{5} =\frac{216}{5}$

$x=43.2$

so,

the price of each train ticket is $43.2..........Answer

8 0

3 years ago

Read 2 more answers

A football coach gives half his players a protein bar to eat before each game; the other players do not receive the protein bar.

timofeeve [1]

To make the sure the results did not happen by chance, the coach can ensure that the protein bars are the only difference between the two groups. For example, he can make sure that both groups are drinking the same amounts of water and getting in the same amount of practice; that way, he will be able to determine that one group is performing better due to the protein bars only. Also, the coach can repeat this experiment multiple times to make sure that the results weren't a random, one-time thing.

4 0

3 years ago

(a) find the slope m of the tangent to the curve y = 5/ x at the point where x = a > 0.(b) find equations of the tangent line

Trava [24]

<span>(a) the slope of curve is calculated from the derivative of the curve expression y=5/x. In this problem, the slope m=-5/(a^2). (b) x=1, y=5ďĽŚand m=-5, the tangent line is y-5=-5*(x-1). x=4, y=5/4, and m=-5/16, the tangent line is y-5/4=-5/16*(x-4)</span>

4 0

3 years ago

Joseph took a taxi from his house to the airport. The taxi company charged a pick-up

JulsSmile [24]

Answer:

$21.10=3.10+2m.

Step-by-step explanation:

If the total fare was $21.50, then that is what it will all have to equal out to.

They charged a pick-up fee of $3.10. Which means that no matter how far you go, you will pay that. Then an extra $2 per mile. If m is mile, then it would be 2m because it is $2 per extra mile. Then add the pick-up fee of $3.10 and you will get your answer of $21.50=3.10+2m.

7 0

3 years ago