- What is the period of sin?
- What happens if the amplitude is negative?
- What does negative b over 2a find?
- What does a negative cosine graph look like?
- How do you self check your stomach for pregnancy?
- What’s the difference between sin and cos graphs?
- How do you know if the amplitude is negative?
- What is the formula for period?
- How do u calculate period?
- What if the discriminant is negative?
- Why is my period late if I’m not pregnant?
- How do you tell if a graph is sine or cosine?
- Where do sine graphs start?
- What does a negative period mean?
- Can I still be pregnant if the test is negative and no period?
- What does B do in a quadratic equation?
- Can a frequency be negative?
- What if B is negative in a quadratic formula?
- What is B in a sine function?
- Why is my period late not pregnant?

## What is the period of sin?

The period of the sine curve is the length of one cycle of the curve.

The natural period of the sine curve is 2π.

So, a coefficient of b=1 is equivalent to a period of 2π.

To get the period of the sine curve for any coefficient b, just divide 2π by the coefficient b to get the new period of the curve..

## What happens if the amplitude is negative?

The difference with a negative value of a however, is our sine curve now has a negative amplitude. In other words, our graphs are the same as when a was a positive value, but are now reflected across the x-axis. To see a direct comparison between positive and negative values of a, click here.

## What does negative b over 2a find?

To find the vertex, we can use -b over 2a. … The negative on the x² tells us our parabola is facing downwards so we have a y coordinate of our vertex at -1 and our parabola goes downwards, sorry the y coordinate of the vertex at 1, parabola facing downwards, so we know that 1 is going to be the largest y value get.

## What does a negative cosine graph look like?

Hare – sign is in front of the cosine graph. If we draw the negative cosine it will produce the reflection about the x – axis. So the negative cosine graph will be opposite to the positive graph.

## How do you self check your stomach for pregnancy?

Walk your fingers up the side of her abdomen (Figure 10.1) until you feel the top of her abdomen under the skin. It will feel like a hard ball. You can feel the top by curving your fingers gently into the abdomen. Figure 10.1 With the woman lying on her back, begin by finding the top of the uterus with your fingers.

## What’s the difference between sin and cos graphs?

In a cosine graph, a positive or negative number vertically flips the graph and determines whether the graph starts at the maximum (if it’s positive) or minimum (if it’s negative). For a sine graph, a positive or negative number vertically flips the graph like it does with a cosine graph.

## How do you know if the amplitude is negative?

Amplitudes are always positive numbers (for example: 3.5, 1, 120) and are never negative (for example: -3.5, -1, -120). Amplitudes are positive because distance can only be greater than zero or equal to zero; negative distance does not exist.

## What is the formula for period?

The formula for time is: T (period) = 1 / f (frequency). λ = c / f = wave speed c (m/s) / frequency f (Hz). The unit hertz (Hz) was once called cps = cycles per second.

## How do u calculate period?

To figure out how long your cycle is, start at cycle day 1 of your last menstrual cycle and begin counting (Cycle day 1,2,3,4 and so forth). The length= the last cycle day before you started bleeding again.

## What if the discriminant is negative?

The discriminant can be positive, zero, or negative, and this determines how many solutions there are to the given quadratic equation. A positive discriminant indicates that the quadratic has two distinct real number solutions. … A negative discriminant indicates that neither of the solutions are real numbers.

## Why is my period late if I’m not pregnant?

Pregnancy is by far the most common cause of a missed period, but there are some other medical reasons and lifestyle factors that impact your menstrual cycle. Extreme weight loss, hormonal irregularities, and menopause are among the most common causes if you’re not pregnant.

## How do you tell if a graph is sine or cosine?

Look at the graphs of the sine and cosine functions on the same coordinate axes, as shown in the following figure. The graph of the cosine is the darker curve; note how it’s shifted to the left of the sine curve. The graphs of y = sin x and y = cos x on the same axes.

## Where do sine graphs start?

origin pointThe Sine curve started at the origin point. An easy way to remember these graphs is to know their 5 important points. The zeros, maximum and minimum points. The Sine curve has zeros at the beginning, middle and end of a cycle.

## What does a negative period mean?

The period of the graph is , as is the period of . The effect of the negative sign on the inside is to replace x-values by their opposites. This will flip the graph around the y-axis. However, because the graph of cosine is symmetric about the y-axis, this has no effect at all.

## Can I still be pregnant if the test is negative and no period?

Your hCG levels will increase over time if you are pregnant. A negative pregnancy test result means the test hasn’t detected hCG in your urine. If your period is very late, or you’ve skipped your period, and you get a negative result, you are unlikely to be pregnant.

## What does B do in a quadratic equation?

Quadratic function: The quadratic function is f(x) = a * x^2 + b * x + c, which tells you what the function will look like graphed. B-value: The b-value is the middle number, which is the number next to and multiplied by the x; a change in the value of b affects the parabola and the resulting graph.

## Can a frequency be negative?

Negative frequency is an idea associated with complex exponentials. A single sine wave can be broken down into two complex exponentials (‘spinning numbers’), one with a positive exponent and one with a negative exponent. That one with the negative exponent is where you get the concept of a negative frequency.

## What if B is negative in a quadratic formula?

This relationship is always true: If you get a negative value inside the square root, then there will be no real number solution, and therefore no x-intercepts. In other words, if the the discriminant (being the expression b2 – 4ac) has a value which is negative, then you won’t have any graphable zeroes.

## What is B in a sine function?

The number, B, in front of x is number of cycles seen in 0 to 2π interval. The value B is the number of cycles the graph completes in an interval of from 0 to 2π or 360º. The value B affects the period. The period of sine and cosine is. .

## Why is my period late not pregnant?

Your cycle Missed or late periods happen for many reasons other than pregnancy. Common causes can range from hormonal imbalances to serious medical conditions. There are also two times in a woman’s life when it’s totally normal for her period to be irregular: when it first begins, and when menopause starts.