SOLUTION: can you help me solve this : how do you graphically solve the quadratic equation {{{ x^2+3x-10=5 }}}

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: can you help me solve this : how do you graphically solve the quadratic equation {{{ x^2+3x-10=5 }}}      Log On


   

Question 188519: can you help me solve this :

how do you graphically solve the quadratic equation +x%5E2%2B3x-10=5+
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
how do you graphically solve the quadratic equation +x%5E2%2B3x-10=5+
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You set the function equal to y, and graph it. Where it crosses the x-axis are the solutions, if any.
+x%5E2%2B3x-10=5+
+x%5E2%2B3x-15=0+
y+=+x%5E2%2B3x-15+
graph the function by picking values for x and solving for y to get coordinate pairs.
@ x = 0, y = -15
@ x = 1, y = -11
@ x = 2, y = -5
etc.
You get enough points to plot them and connect them with a smooth curve.
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The easy way:
dl the (free) software from www.padowan.dk.com/graph/ and do it there.