## How can I calculate my height?

A person who’s 5 feet, 6 inches tall is 66 inches. One inch equals 2.54 centimeters (cm). So, to make the conversion, simply multiply your height in inches by 2.54 to get your height in centimeters. In this case, a person who’s 5 feet, 6 inches tall, once converted to the metric system, is 167.64 cm tall (66 x 2.54).

**How do you know if a function is quadratic?**

Graphs. A quadratic function is one of the form f(x) = ax2 + bx + c, where a, b, and c are numbers with a not equal to zero. The graph of a quadratic function is a curve called a parabola. Parabolas may open upward or downward and vary in “width” or “steepness”, but they all have the same basic “U” shape.

### How do you convert an equation into standard form?

The standard form of such an equation is Ax + By + C = 0 or Ax + By = C. When you rearrange this equation to get y by itself on the left side, it takes the form y = mx +b. This is called slope intercept form because m is equal to the slope of the line, and b is the value of y when x = 0, which makes it the y-intercept.

**How do you write a quadratic function in standard form?**

A quadratic equation is an equation of the form ax2+bx+c=0 a x 2 + b x + c = 0 , where a≠0 a ≠ 0 . The form ax2+bx+c=0 a x 2 + b x + c = 0 is called the standard form of the quadratic equation.

#### What is the height of the ball after 1 second?

86 feet

**What type of graph is a quadratic equation?**

parabola

## How 9.81 is calculated?

The acceleration g=F/m1 due to gravity on the Earth can be calculated by substituting the mass and radii of the Earth into the above equation and hence g= 9.81 m s-2.

**What is the formula for height?**

So, “H/S = h/s.” For example, if s=1 meter, h=0.5 meter and S=20 meters, then H=10 meters, the height of the object.

### How do you identify a quadratic function from a graph?

In order to find a quadratic equation from a graph, there are two simple methods one can employ: using 2 points, or using 3 points. Using this formula, all we need to do is sub in the vertex and the other point, solve for a, and then rewrite our final equation.

**How do you find time with gravity and height?**

Free fall means that an object is falling freely with no forces acting upon it except gravity, a defined constant, g = -9.8 m/s2. The distance the object falls, or height, h, is 1/2 gravity x the square of the time falling. Velocity is defined as gravity x time.

#### What do quadratic functions look like?

The graph of a quadratic function is called a parabola and has a curved shape. One of the main points of a parabola is its vertex. It is the highest or the lowest point on its graph. You can think of like an endpoint of a parabola.

**How far can you fall in 6 seconds?**

The formula I learned in high school Physics is s=1/2gt squared, where s is distance in meters, g is the force of gravity (10 meters per second per second), and t is time in seconds. So in 6 seconds, a person will fall 5 x 36 or 180 meters.

## What will be the height of the ball after 2 second?

12.4 meters

**How do you find the slope of a quadratic function?**

To find the slope of a line tangent to a parabola at a specific point, find the derivative of the parabola’s equation, then substitute the -coordinate of the specific point in the new equation. Since the -intercept is the point where the -coordinate is , substitute into the equation for .

### How the quadratic equation is used in real life?

Quadratic equations are actually used in everyday life, as when calculating areas, determining a product’s profit or formulating the speed of an object. Quadratic equations refer to equations with at least one squared variable, with the most standard form being ax² + bx + c = 0.

**How many G’s can kill you?**

The body is designed to pump blood upward, but negative gs force more of the blood to the head, causing vessels to burst in the eyes — a condition called “red out” — and, eventually, the brain. A extended force as low as negative 3 gs can prove fatal.

#### How do you make a quadratic equation?

In summary: If you know the vertex and a point on a parabola, use the “vertex-form”, y = a(x – h)2 + k, to write the equation of the parabola. If you know three points on the parabola, but not the vertex, use the form y = ax2 + bx + c to write the equation of the parabola.

**How far do you fall in 2 seconds?**

The first equation shows that, after one second, an object will have fallen a distance of 1/2 × 9.8 × 12 = 4.9 m. After two seconds it will have fallen 1/2 × 9.8 × 22 = 19.6 m; and so on.

## What is the maximum height of the ball?

30 meters

**What is the G in physics?**

In the first equation above, g is referred to as the acceleration of gravity. Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2. There are slight variations in the value of g about earth’s surface.

### How do you find slope from standard form?

The standard form of a linear equation is Ax + By = C. When we want to find the slope of the line represented by this equation, we have two options. We can put the equation in slope-intercept form and identify the slope that way, or we can use the formula m = -A/B.