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3 years ago

Is y + 5x^2=-4 a quadratic function? yes or no

Mathematics

2 answers:

devlian [24]3 years ago

7 0

Answer:

Yes

Step-by-step explanation:

In standard form, this function is written as:

$y = - 5 {x}^{2} - 4$

Because it has the parent function of:

$y = {x}^{2}$

It is a quadratic function.

Arlecino [84]3 years ago

5 0

Answer: Yes

Step-by-step explanation:

When you rearrange the equation it would be y=-5x^2-4, and since it is a 2nd degree we can easily say it is a quadratic function.

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10-5(9n-9) simplify the expressions

eduard

Answer:

−45n+55

Step-by-step explanation:

10-5(9n-9)

distribute -5 into (9n-9)

10-45n+45

combine like terms

10+45=55

-45n+55

hope this helps

8 0

3 years ago

What is the value of the equation -2/3x + 9 = 4/3 x -3?

MArishka [77]

Answer:

x = 6

Step-by-step explanation:

$\frac{-2}{3}x+9=\frac{4}{3}x-3\\\\\frac{-2}{3}x-\frac{4}{3}=-3-9\\\\\frac{-2-4}{3}x= - 12\\\\\frac{-6}{3}x = -12\\\\ -2x -12\\\\x = \frac{-12}{-2}\\\\x = 6$

3 0

3 years ago

1 | 4

3241004551 [841]

b. c=4s

you multiply x times 4 to get y

3 0

3 years ago

Ana is 12 years old, her brother Joe is 3 years old. Find the ratio between Ana's age and Joe's age.

zalisa [80]

Answer:12/3=4

ratio 4:1

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

50 points! Please help me with both. Random answers with be reported

Liula [17]

Answer:

Q1. 86°
Q2. B(2,0), D(3,1)

Step-by-step explanation:

The angle of rotation is twice the angle of intersection:

43°*2 = 86°

Dilation by a scale factor of 2 resulted in:

(x, y) → (2x, 2y) for each point C' and D'

The endpoints of the original segment are:

C = (4/2, 0/2) = (2, 0)
D = (6/2, 2/2) = (3, 1)

Correct choice is B

8 0

2 years ago

Is y + 5x^2=-4 a quadratic function? yes or no​

Is y + 5x^2=-4 a quadratic function? yes or no