Question 821026: a)Find the y intercept, the equation of the axis of symmetry, and the x- coordinates of the vertex.
b) Make a table of values that includes the vertex.
c) Use this information to graph the function
f(x)= x^2 +2x
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! 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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