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Answered 2016-03-19 10:31:58

Simply learn and use the quadratic equation formula.

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What is the solving for the roots of quadratic equation?

It is finding the values of the variable that make the quadratic equation true.


Why are x values called roots?

In math speak: Solving the equation means finding 'x' values that make the equation true. These 'x' values are called the roots of the quadratic.


What shape does the quadratic graph make?

The graph of a quadratic equation has the shape of a parabola.


Which values for a b or c can you not use the quadratic equation?

a = 0. That is because a = 0 implies that there is no quadratic term and so the equation is not a quadratic!There may be some who make claims depending on the value of the discriminant (which is b2-4ac). That is true only for elementary mathematics. In more advanced mathematics (complex analysis), the quadratic equation can be used in all cases except when a = 0: the value of the discriminant is irrelevant.a = 0. That is because a = 0 implies that there is no quadratic term and so the equation is not a quadratic!There may be some who make claims depending on the value of the discriminant (which is b2-4ac). That is true only for elementary mathematics. In more advanced mathematics (complex analysis), the quadratic equation can be used in all cases except when a = 0: the value of the discriminant is irrelevant.a = 0. That is because a = 0 implies that there is no quadratic term and so the equation is not a quadratic!There may be some who make claims depending on the value of the discriminant (which is b2-4ac). That is true only for elementary mathematics. In more advanced mathematics (complex analysis), the quadratic equation can be used in all cases except when a = 0: the value of the discriminant is irrelevant.a = 0. That is because a = 0 implies that there is no quadratic term and so the equation is not a quadratic!There may be some who make claims depending on the value of the discriminant (which is b2-4ac). That is true only for elementary mathematics. In more advanced mathematics (complex analysis), the quadratic equation can be used in all cases except when a = 0: the value of the discriminant is irrelevant.


What are 3 different methods that can graph a linear equation?

You could put the equation in slope-intercept form or in parent linear function or even make a table of values.


What adds together to make -9 but times together to make 4?

The numbers are: -0.4688 and -8.5312 to 4 decimal places More accurate values can be found by using the quadratic equation formula


Where do you find the roots when looking at a parabola?

-- The roots of a quadratic equation are the values of 'x' that make y=0 . -- When you graph a quadratic equation, the graph is a parabola. -- The points on the parabola where y=0 are the points where it crosses the x-axis. -- If it doesn't cross the x-axis, then the roots are complex or pure imaginary, and you can't see them on a graph.



What is the solution to the equation?

It is the set of values for all the variables in the equation which make the equation true.


What is a table of values?

A table you make to find the coordinates to graph.


How do engineers use the quandratic formula?

Law of motion is quadratic equation and is use in calculate of object trajectory. Fluid dynamic for sizing of pump is also second order equation. Quadratic equation or higher may use to fit equation for fast calculation of result. Example on vapour density equation for the use of evaporative mass transfer. We do need to know how much water air can take. It could use the data from table but the work will be lengthly. We can make data in the table a form of polynomial equation and so put it into program for calculated out this require vapour density.


What does it mean to be a solution to an equation?

A solution to an equation is a set of values for the variables in the equation which make it true.


What are the values of the variable that make an equation true called?

They are called the "solutions" of the equation.


Can you solve a variable with an equation?

When an equation has a variable in it (only one), then there are only certainvalues the variable can have that will make the equation a true statement."Solving" the equation means finding those values for the variable.



What is an application for a quadratic equation in real life?

A quadratic equation could be used to find the optimal ingredients for a mixture. Example: if you are trying to create a super cleanser, you could make a parabola of your ingredients, finding the roots of the equation to find the optimal amount for each ingredient.


What is the solution of an equation?

the set of all values which, when substituted for unknowns, make an equation true. this is wrong


What does a solution equation mean?

the set of all values which, when substituted for unknowns, make an equation true.


How do you make a function table for y equals -4x2?

Choose some values for x. Then calculate the corresponding values of y using the formula. Put these values in a table.Choose some values for x. Then calculate the corresponding values of y using the formula. Put these values in a table.Choose some values for x. Then calculate the corresponding values of y using the formula. Put these values in a table.Choose some values for x. Then calculate the corresponding values of y using the formula. Put these values in a table.


How to graph y - x plus 3?

I suggest that you:* Solve the equation for variable "y". * Make a table of values, by calculating the value of "y" for different values of "x". * Plot the points * Join them by lines


What the meaning of quadratic equation given the roots?

If f(x) = 0 is a quadratic equation in x, then the roots of f(x) are the values of x which make the equation true.If f(x) = ax^2 + bx + c = 0then the roots are[-b - sqrt(b^2 - 4ac)]/(2a)] and [-b + sqrt(b^2 - 4ac)]/(2a)].Conversely,given the roots of f(x) = 0 are s and t thenf(x) = x^2 - (s+t)*x + st.


What is the goal of solving an equation with one variable?

The goal is to find what value or values the variable may have, to make the equation true.


Using quadratic equation volume of cylinder is 140 height is 10?

Using proper grammer make question understandable is yes?



How do you solve 4X squared plus 8X minus 20 equals 0?

-- Although not required, you can make it slightly easier on yourselfif you first divide each side of the equation by 4.-- Either way, you're left with a quadratic equation that isn't easilyfactorable by inspection, so you're forced to use the quadratic formulawhich you learned and then forgot.-- The quadratic formula says that when you have the quadratic equation[ Ax2 + Bx + C = 0 ],which is exactly what you have, the two solutions arex = 1/2A [ -B + sqrt(B2-4AC) ]andx = 1/2A [ -B - sqrt(B2-4AC) ].This is the perfect time to use the quadratic formula,and that's exactly how you solve your equation.


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