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4 years ago

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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Find the sum of the polynomials. (3x3 + 4x2 - 2x + 1) + (x4 - x3 + 5x2 + 2x + 3) A. x4 + 2x3 + 9x2 - 4x + 4 B. x4 + 4x3 + 9x2 +

alisha [4.7K]

$3 x^{3} + 4 x^{2} -2x + 1 + x^{4} - x^{3} + 5 x^{2} + 2x +3 = x^{4} +2 x^{3} + 9 x^{2} + 4$

Hence, the answer is D.

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4 years ago

Leila says that 75% of a number will always be greater than 50% of any other number.

Gemiola [76]

That is not correct, it depends on the numbers you are referring to. For instance, 75% of 100 is 75, but 50% of 1000 is 500, so in this case the 50% of a number is higher than 75% of another number. Although, is true that 75% is higher than 50% of the same number always.

3 0

3 years ago

Please help meeee evauate 1746\9<br>

Viefleur [7K]

i believe the answer is 194

Step-by-step explanation:

just divide 1746 from 9

4 0

3 years ago

Read 2 more answers

Can some on help me on this question?

mario62 [17]

Answer:

x=10 and x-7 is the answer

Step-by-step explanation:

a)2x-7=13

2x=13+7

2x=20

x=20/2

x=10

b)3x+4=25

3x=25-4

3x=21

x=21/3

x=7

i hope it will help you

6 0

3 years ago

Read 2 more answers

Which point is a reflection of (1.5, -4.5) across the x-axis and the y-axis? A. Point I B. Point J C. Point K D. Point L E. Poin

sammy [17]

Answer:

B. point J>C

Step-by-step explanation:

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4 years ago