SOLUTION: Graph the quadratic function f(x)= -2x^2+8x+8. State the ordered pairs representing the x-intercept(s), y-intercept(if any), and the vertex of the parabola.
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Question 366631: Graph the quadratic function f(x)= -2x^2+8x+8. State the ordered pairs representing the x-intercept(s), y-intercept(if any), and the vertex of the parabola. Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! -2x^2+8x+8
plug x = 0 for y intercept
=8
solve the equation for roots x1,x2
discriminant = 128
...
x1=4.8
x2=-0.8
xintercepts (-0.8,0) (4.8,0)
y intercept = (0,-8)
vertex = (2,-16)
...
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m.ananth@hotmail.ca
