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4 years ago

Which of the two functions below has the largest maximum y-value?

Mathematics

2 answers:

Pavel [41]4 years ago

4 0

The answer is 'D'
APEX

kvv77 [185]4 years ago

3 0

Answer: D. g(x)

Step-by-step explanation: since,f(x)=-x^4-2

x^4>=0 for all x so,-x^4<=0 for all x

⇒ -x^4-2<=-2 for all x

⇒ f(x)<=-2 for all x so, maximum possible value of f(x)=-2

whereas g(x)= -3x^3+2 can take values from (-∞,∞)

so, g(x) has the maximum y value

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Answer:

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1+5y= "6y=4"

Step-by-step explanation:

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3 years ago

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3 years ago

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3 years ago

Use elimination to solve the system of equations given by 3x - 2y = 10 and 5x + 2y = 6

pishuonlain [190]

Answer:

x = -2 y= -8 and 8

Step-by-step explanation:

Since there is an equal number of y's, they cancel out when subtracting. You can put either equation on top. You will get same answer.

To find x:

If you do (3x - 2y = 10) - (5x + 2y = 6), you will get -2x=4. Divide both sides by -2, and get x = -2.

If you do (5x + 2y = 6) - (3x - 2y = 10), you will get 2x=-4.Divide both sides by 2, and get x = -2.

To find y:

Substitute -2 for x in either equation. It doesn't matter.

For 3(-2) - 2y = 10:

3(-2) - 2y = 10 ––Multiply

-6 - 2y =10 ––Add 6 to both sides to get y alone

-2y = 16 ––Divide by -2

y = -8

For 5x + 2y = 6:

5(-2) + 2y = 6 ––Multiply

-10 + 2y = 6 ––Add 10 to both sides to get y alone

2y = 16 ––Divide by 2

y = 8

6 0

3 years ago