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Aleonysh [2.5K]
3 years ago
6

Which equation can be simplified to find the inverse of y = 2x2? StartFraction 1 Over y EndFraction = 2 x squared y = one-half x

squared –y = 2x2 x = 2y2
Mathematics
2 answers:
kirill [66]3 years ago
8 0

Answer:

the answer is d

x=2y^2

Step-by-step explanation:

Leona [35]3 years ago
5 0

Answer:

x=2y^{2}

Step-by-step explanation:

The given function is

y=2x^{2}

To the inverse, first we isolate x

y=2x^{2}\\x^{2} =\frac{y}{2}\\

Then, we change variables

y^{2}=\frac{x}{2}, this is the inverse of the given function.

Now, if you observe the choices, the last one is the inverse

x=2y^{2}, just move the number two, and it's the same result

y^{2}=\frac{x}{2}

Therefore, the right answer is the last choice.

You might be interested in
Given the function f(x) = 4x - 2, explain and show how to find the average rate of change between x = 2 and x = 4.
zalisa [80]

Answer:

The average rate of change between x = 2 and x = 4 is of 4.

Step-by-step explanation:

Average rate of change:

The average rate of change of a function f(x) in an interval [a,b] is given by:

A = \frac{f(b)-f(a)}{b-a}

In this question:

f(x) = 4x - 2, b = 4, a = 2

Thus:

f(b) = f(4) = 4(4) - 2 = 16 - 2 = 14

f(a) = f(2) = 4(2) - 2 = 8 - 2 = 6

Average rate of change:

A = \frac{f(b)-f(a)}{b-a}

A = \frac{14-6}{4-2}

A = \frac{8}{2}

A = 4

The average rate of change between x = 2 and x = 4 is of 4.

7 0
3 years ago
Desmond measured a city park and made a scale drawing. The scale he used was 1 centimeter: 9 meters. The actual width of the soc
kupik [55]

Answer:

6 cm

Step-by-step explanation:

1 cm : 9 meters -->  1cm/9m

? cm : 54 meters -->  ?cm/54m

\frac{1}{9}=\frac{?}{54}; 54*\frac{1}{9}=?;6=?

7 0
3 years ago
35 POINTS HELP ASAP!!!
Allisa [31]

Answer: 3

Step-by-step explanation:

3:1

\frac{3}{1}=3

6 0
3 years ago
2.6 less than the product of 4 and a number z
Alexandra [31]
I think The answer is B
3 0
3 years ago
Read 2 more answers
I NEED HELP!
Vinvika [58]

Answer:

Step-by-step explanation:

First of all you have to put the zeros into factor form.

y1 = (x + 2)(x - 5)

Notice that the x changes sigh. You say that the zeros are -2 and  5. To get y1 to go to zero, you must make x the opposite sign of what you are given.

Now you have to expand the factored form to get the standard form

y = x^2 + 2x - 5x - 10

y = x^2 - 3x - 10

That's not the right answer.

f(0) = 30 but you have - 10 at the end so you have to multiply the factored form by - 3

-3(f(x)) = -3(x + 2)(x - 5)

-3(f(x)) = -3(x^2 - 3x - 10)

f(x) = -3x^2 + 9x + 30    

f(0) = -3(0)^2 + 9(0) + 30

f(0) = 30

The quadratic still has roots of (x +2)(x - 5) but that 3 makes the y intercept = 30.

See the graph below.

6 0
3 years ago
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