Question 62196: I am lost on this one
Graph Y=3x^2-8x+2 and give the vertex, dpmai and range?
Thank you for your help Answer by funmath(2933) (Show Source):
You can put this solution on YOUR website! Graph Y=3x^2-8x+2 and give the vertex, domain and range?
The y-intercept happens when x=0
y=3(0)^2-8(0)+2
y=0-0+2
y=2 Plot (0,2)
:
The quadratic equation is in standard form
a=3, b=-8, and c=2
Because a is positive, the parabola opens upward.
The x coordinate of the vertex is found with the formula
Substitute that into the equation to find the y coordinate.
The vertex is (4/3,-10/3)
The domain for all parabolas is all real numbers. {x|x=R}
The range is from the vertex upward since it opens upward. {y|y>=-10/3}
Happy Calculating!!!
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