SOLUTION: i need the formula for how to find the equation of a curved line graph eg y=_xsquared +_x + _
Algebra.Com
Question 240240: i need the formula for how to find the equation of a curved line graph eg y=_xsquared +_x + _
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
If you mean a quadratic equation, the formula is:
x =
standard form of the quadratic equation is:
where:
a is the coefficient of the term.
b is the coefficient of the x term.
c is the constant.
You solve for x.
The y value is 0 because you set the equation equal to 0.
Your roots are:
(x,y) = (x,0) where you replace x with the values you calculated for x.
The roots can be real or imaginary.
If the roots are real, the graph of the equation crosses the x-axis at y = 0.
If the roots are not real (contain an imaginary part which is a negative square root) then the graph of the equation will not cross the x-axis.
The quadratic formula works on all quadratic equations whether the roots are real or imaginary.
RELATED QUESTIONS
NEED HELP
How do I make a formula for an increasingly decreasing sequence?
eg:... (answered by Theo,Edwin McCravy)
I need help with graphing linear equations. I need to complete the function table ( x y... (answered by advanced_Learner)
i need to make y the subject of the equation, eg y=....... (answered by stanbon)
You are given that DF=EG=3cm, CH=5cm and FG=4cm. DF, CH and EG are all perpendicular to... (answered by robertb)
for the function y=x2-4x-5, perform the following tasks:
a) Put the function in the form (answered by longjonsilver)
I have a few sets of points, what i need is a table of every 20 seconds, which I could do (answered by DrBeeee)
which equation creates a graph with curved V opening to the right?
x= -y^2-2y
x=... (answered by richwmiller)
hey, i have two questions i really need some help on. i'm beyond lost and really need an... (answered by oscargut)
Thank you for helping me!
I need to make a scatter plot of the data and find the... (answered by ikleyn,math_tutor2020)