SOLUTION: y=x^2-2x-5 identify the vertex and y-intercept of each

Question 822555: y=x^2-2x-5
identify the vertex and y-intercept of each

Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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y = x^2 - 2x - 5
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the above quadratic equation is in standard form, with a=1, b=-2, and c=-5
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to solve the quadratic equation, by using the quadratic formula, copy and paste this:
1 -2 -5
into this solver: https://sooeet.com/math/quadratic-equation-solver.php
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this quadratic has two real roots (the x-intercepts), which are:
x = 3.44948974
x = -1.44948974
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y-intercept = (0, -5)
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the quadratic vertex is a minimum at: ( 1, -6 )
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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
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