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topjm [15]
4 years ago
7

What are the domain and range of the function f(x) = x^4-2x^2-4 ?

Mathematics
2 answers:
tatuchka [14]4 years ago
7 0

Answer:

Think about what domain and range is. Domain is the x and range is the y.

Step-by-step explanation: What values of x can you put in this function? Is there any number you cannot use?? Then what y's will you get back? The best way to find out might be to graph it to look. Since it is an even function whose ends go up, all the y's will be greater than or equal to the y value of the vertex.

Nikitich [7]4 years ago
6 0

Answer:

domain: all real numbers

range: all real numbers greater than or equal to –5

Step-by-step explanation:

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Use the discriminant to describe the roots of each equation. Then select the best description. 2m2 + 3 = m.
Tpy6a [65]

The roots of the equation , 2m^{2}+3=m, are non real roots.

<h3>Discriminants are what?</h3>

The quadratic formula's discriminant is represented by the square root symbol b^{2}-4ac. If there are two solutions, one solution, or none at all, the discriminant informs us.

As of now, 2m²+3=m we need to find the kind of roots they have.

2m²+3=m

2m²-m+3=0

Here, we can derive the following values from the equation:

a = 2, b = -1, c = 3

An equation's discriminant is stated as:

D = b²-4ac

D = (-1)(-1) - 4(2)(3)

D = 1 - 24

D = -23

Discriminant can determine the kind of roots that the equation contains.

In this instance, the discriminant is below 0.

The equation's roots are complex conjugates when D < 0.

Hence the roots for the equation are non real roots.

To get more information about discriminant follow the link:

https://brainly.in/question/27214502

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4 0
1 year ago
Read 2 more answers
Explain the answer and I'll add you as brand list
choli [55]

Answer:

how to find it out

Step-by-step explanation:

on the line that starts at x=-6 and ends at x=6.Find the spot where the y value is the highest

8 0
3 years ago
Rocco has a weekly reading schedule, reading for 4.5 hours per day on some days and 3.5 hours per day on the other days. He read
AleksAgata [21]

Answer:

x = days he reads for 4.5 hours = 1 day

y = days he reads for 3.5 hours = 6 days

Step-by-step explanation:

Let

x = days he reads for 4.5 hours

y = days he reads for 3.5 hours

x + y = 7 (1)

4.5x + 3.5y = 25.5 (2)

From (1)

x = 7 - y

Substitute x = 7 - y into (2)

4.5x + 3.5y = 25.5 (2)

4.5(7 - y) + 3.5y = 25.5

31.5 - 4.5y + 3.5y = 25.5

- 4.5y + 3.5y = 25.5 - 31.5

-y = -6

y = 6

Substitute y = 6 into (1)

x + y = 7 (1)

x + 6 = 7

x = 7 - 6

x = 1

x = days he reads for 4.5 hours = 1 day

y = days he reads for 3.5 hours = 6 days

4 0
3 years ago
What is the graph of y = 3/4x - 3?
bearhunter [10]

Answer:

-4, 3 I think that correct but I'm not sure so sorry if it's not

Step-by-step explanation:

7 0
2 years ago
Evaluate the function g(x) = 8x + 16 when x = -3,0, and 8.<br> g(-3) =<br> ) 0<br> g(0) =<br> 9(8) =
Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

7 0
3 years ago
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