Which of the following correctly describes the graph of f(x)=-2x^(2)+8x-1 ?
The graph is a parabola with a vertex at (2,7), a y-intercept at (0,-1), and the parabola opens down.
The graph is an exponential function with a y-intercept at (0,-1) and a horizontal asymptote at y=2.
The graph is a parabola with a vertex at (8,1), a y-intercept at (0,1), and the parabola opens down.
The graph is an exponential function with a y-intercept at (2,7) and a horizontal asymptote at y=-1.
The graph is a parabola with a vertex at (2,7), a y-intercept at (0,1), and the parabola opens up.
Which of the following correctly describes the graph of f=2+8-1
O The graph is a parabola with a vertex at 27a y-intercept at 0,1,and the parabola opens down
O The graph is an exponential function with a y-intercept at (0,-1) and a horizontal asymptote at y = 2.
O The graph is a parabola with a vertex at 8,1a y-intercept at0,1,and the parabola opens down.
O The graph is an exponential function with a y-intercept at 27and a horizontal asymptote at y=-1
OThe graph is a parabola with a vertex at2,7a y-intercept at0,1,and the parabola opens up.