Sunday

March 1, 2015

March 1, 2015

Posted by **Amanda** on Wednesday, April 9, 2008 at 11:18pm.

Please check my answer -

You would substitute the value for the dependent variable, then you would solve for the independent variable.

(is it right?)

2. What is the greatest number of solutions a quandratic equation can have? Explain, with an example, why all of the solutions to the equations may not be reasonable answers to the original problem.

My answer-

A quandratic equations can have either no solution, one solution or two solutions.

Can someone please help me with the answer to this question too? Please explain it also.. i find it so hard. >.<

Thanks!

- Math ; please please help. -
**drwls**, Wednesday, April 9, 2008 at 11:34pm1. The independent variable is the "x" in the quadratic equation ax^2 + bx + c = y (the dependent variable)

If you know y, then solve

ax^2 + bx + (c-y) = 0

c-y is a new constant, c'

The equation can be solved by completing the square or using the equation

x = [-b +/- sqrt(b^2-4ac')]/2a

2. You are right; the greatest number of solutions is two. There can be one solution in some cases. It is possible that all solutions contain imaginary numbers (the square root of a negative number), in which case there are no REAL solutions.

It is possible that only one of the two solutions is a reasonable solution to the problem. For example, if you throw a ball and ask when it hits the ground,

y = at - bt^2,

there will be two solutions; one will be the time t=0 when you threw it.

- Math ; please please help. -
**Anonymous**, Tuesday, March 13, 2012 at 9:26pmVariable of 3/23=j/3

**Answer this Question**

**Related Questions**

Stats - In each of the four examples listed below, one of the given variables is...

math - 8 divided by 3 plus 6= You asked 8 divided by 3 plus 6= (8/3) + 6 = 2(2/3...

biology need help - Which variable does the scientists or you deliberately ...

biology - Which variable does the scientists or you deliberately change? ...

Stats - 6. In each of the four examples listed below, one of the given variables...

Adult Development and life Assessment - What do we call the variable that is ...

Adult Development and life Assessment - What do we call the variable that is ...

MATH - D. Sam and Pete have a job dog-sitting for their neighbor. He pays them $...

independent variable - What axis do you plot the independent variable and what ...

biology - can someone better explain to me what the independent/manipulated ...