Which of the following functions best describes this graph?
a) y= х2 – 8х + 15
в) y= х2 + 8х + 15
c) у= х2 +х- 12
d) y= х2 – 5х +6

What is the slope of the equation y =

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2