SOLUTION: Graph the quadratic equation. y = x^2 + 2x

Algebra.Com
Question 172245This question is from textbook Introductory Algebra
: Graph the quadratic equation.
y = x^2 + 2x This question is from textbook Introductory Algebra

Found 2 solutions by KnightOwlTutor, jojo14344:
Answer by KnightOwlTutor(293)   (Show Source): You can put this solution on YOUR website!
Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation (in our case ) has the following solutons:



For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=4 is greater than zero. That means that there are two solutions: .




Quadratic expression can be factored:

Again, the answer is: 0, -2. Here's your graph:
Answer by jojo14344(1513)   (Show Source): You can put this solution on YOUR website!
let's see:

From the graph alone, you can see the vertex at (-1,-1).
Also the X-Intercept at &,
.
Thank you,
Jojo
RELATED QUESTIONS

graph the quadratic equation... (answered by checkley75)
Graph the quadratic equation y = x^2+... (answered by rapaljer)
Graph the quadratic equation.... (answered by 303795)
Graph the quadratic equation after completing the given table of values. y = –x^2 –... (answered by stanbon)
Determine the graph of the quadratic equation y = x^2 - 2x +... (answered by Gogonati,MathLover1)
Graph the quadratic equation. y= x^2 + x -... (answered by checkley77)
graph the quadratic equation... (answered by checkley75)
Graph the quadratic equation y= -x^2 - 4x -... (answered by richwmiller)
Graph the quadratic equation y = x^2 + 8x +... (answered by richwmiller)