<PRE><B>Question 821026</B>
f(x)= x^2 + 2x
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the above quadratic equation is in standard form, with a=-1, b=2, and c=0
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to solve the quadratic equation, by using the quadratic formula, copy and paste this:
1 2 0
into this solver: https://sooeet.com/math/quadratic-equation-solver.php
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the two real roots (i.e. the two x-intercepts), of the quadratic are:
x = 0
x = -2
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y-intercept: ( 0, 0 )
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axis of symmetry: x = -1
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vertex: ( -1, -1 )
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graph:
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{{{ graph( 300, 300, -3, 3, -3, 3, x^2 + 2x) }}}
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Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php</PRE>