SOLUTION: How do you graph the quadratic equation x^2+4x+2=0?

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: How do you graph the quadratic equation x^2+4x+2=0?      Log On


   

Question 677487: How do you graph the quadratic equation x^2+4x+2=0?
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
y intercept is 2
Plot (0,2)
...
x intercept is when y = 0
x%5E2%2B4x%2B2=0
x%5E2%2B4x%2B4+=+-2%2B4
%28x%2B2%29%5E2=2
sqrt%28x%2B2%29%5E2 +/- sqrt%282%29
x+2 = +/- sqrt%282%29
x = -2%2B-sqrt%282%29
Plot (-2%2Bsqrt%282%29, 0) AND (-2-sqrt%282%29, 0)
...
vertex is from
%28x+-+-2%29%5E2+%2B+-2+=+y
(-2,-2)
...
graph%28300%2C200%2C-10%2C10%2C-10%2C10%2Cx%5E2%2B4x%2B2%29
.....................
Delighted to help.
-Reading Boosters
Website: www.MyHomeworkAnswers.com
Wanting for others what we want for ourselves.