SOLUTION: Use three or more sentences to describe how you would solve the following equation by graphing. 2x2-13x-7=0

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Use three or more sentences to describe how you would solve the following equation by graphing. 2x2-13x-7=0       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 125583: Use three or more sentences to describe how you would solve the following equation by graphing. 2x2-13x-7=0

Answer by marcsam823(57) About Me  (Show Source):
You can put this solution on YOUR website!
1. Find the roots of the equation - either by using the FOIL method or the quadratic formula.
2. Using the general formula ax^2 + bx + c = 0 find -b/2a. This is the x-coordinate for the vertex of the parabola.
3. Plug this value into the original equation to determine the y-coordinate of the vertex.
4. Plot the three points:
a) (root 1, 0)
b) (root 2, 0)
c) Vertex
5. Connect the points. There is your parabola!