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Determine whether the parabola opens upward or downward ?
f(x)=5x2+x+1f(x)=5x^2+x+1f(x)=5x2+x+1
upward
downward
Is the sentence true or false?
The domain of a quadratic function is all real numbers
True
False
Determine whether the parabola opens upward or downward
f(x)=−x2+2x+1f(x)=-x^2+2x+1f(x)=−x2+2x+1
Determine the axis of symmetry for f(x)=x2−6x+8f(x)=x^2-6x+8f(x)=x2−6x+8
x=1x=1x=1
x=3x=3x=3
Determine the vertex for f(x)=x2−6x+8.f(x)=x^2-6x+8.f(x)=x2−6x+8.
(1,3)(1,3)(1,3)
(3,−1)(3,-1)(3,−1)
Determine the axis of symmetry for f(x)=x2+2x+1f(x)=x^2+2x+1f(x)=x2+2x+1
x=−1x=-1x=−1
The graph of a quadratic function is always a parabola.
The graph of a quadratic function is always a straight line.
f(x)=−3x2+6x+2.f(x)=-3x^2+6x+2.f(x)=−3x2+6x+2.
The domain of a quadratic function is set of integers.
true
false
It is done.