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umka21 [38]
3 years ago
11

Which function's graph has a period of 2?

Mathematics
2 answers:
goblinko [34]3 years ago
7 0

Answer:

Option 2. y = 3 cos πx is the answer.

Step-by-step explanation:

If the function is in the standard form of y = acos(bx+c)  or y = asin(bx+c)

Then period of the given function will be = 2π/b

1) For y = cos(x - π/2)

Therefore period of the function will be = 2π/1 = 2π

2) For y = 3cos πx

Period = 2π/π = 2

Correct option.

3) y = 2 sin 3x

Period of the function = 2π/3

4). y = -4sin 2x

Period of the function = 2π/2 = π

So option 2 is the answer.

Svet_ta [14]3 years ago
4 0
If the function is:
y=a cos( bx+c), or y=a sin(x+c)
then the period is T= 2π/b and if T=2:
2=2π/b
b=2π/2=π
Answer: B) y=3 cos πx 
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The formula for calculating the mark up percentage is as follows:

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<h3>How to find the percentage mark up?</h3>

Percentage mark up can be described as follows:

percentage mark up = selling price per unit - cost price per unit / cost price per unit × 100

Therefore,

Mark up is the difference between a product's selling price and cost as a percentage of the cost.

Therefore, the formula for calculating the mark up percentage is as follows:

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2 years ago
Find the inverse function F -1 (X) for the given function F (X)
charle [14.2K]

<u>Solution for question 5:</u>

f(x) = 4x - 8

To find f^-1(x) write it as an equation:

y = 4x - 8

Then take x to left and y to right;

x = 4y - 8

Then solve for y;

y = (x + 8)/4 = x/4 + 2

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8 0
3 years ago
CAN SOMEONE HELP WITH THIS ASAP
Mazyrski [523]

Answer:

When x=1/2, y=28/3

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Step-by-step explanation:

First lets convert them to fractions to make it easier. Also put them in order.

X                     Y

0

1/2  

3/4                  19/2

1                      29/3

6/5                 49/5

You can find the slope since we know 2 points.

(3/4, 19/2) and (6/5, 49/5)

m=3/10 / 9/20

m=2/3

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Lets plug in x and y points to find the y-int

19/2=2/3(3/4) + b

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Therefore y=2/3 x + 9

When x=1/2, y=28/3

when x =0, y=9

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3 years ago
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balu736 [363]
Yes, your answer is correct
4 0
3 years ago
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aleksandr82 [10.1K]
7*5=35

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The dimensions are 7 and 5 inches.
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4 years ago
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