Beginning & Intermediate Algebra
Which of the following correctly presents the vertex form of a vertical parabola and identifies its vertex?
Convert the equation y=2x2+8x+5y = 2x^2 + 8x + 5 into vertex form by completing the square, and identify the vertex.
Given the equation of the vertical parabola y=0.5(x−1)2+3y = 0.5(x - 1)^2 + 3, determine the coordinates of the focus and the equation of the directrix.
Complete the square to convert x=y2+6y+10x = y^2 + 6y + 10 into vertex form x=a(y−k)2+hx = a(y - k)^2 + h. Then, identify the vertex and the axis of symmetry.
A garden arch is shaped like a vertical parabola. The vertex of the arch is 66 units high at x=1x = 1, and the arch is 44 units high at x=3x = 3. Determine the value of aa and write the equation of the arch in the form y=a(x−1)2+6y = a(x - 1)^2 + 6.