Exploring Geometry Problem #9 Solutions

What is the first step in solving the quadratic equation given in the problem?

• Graphing the equation

• Finding the y-intercept

• Setting the equation to zero

• Finding the vertex

Which method is used to solve the quadratic equation in this problem?

• Graphing

• Factoring

• Quadratic formula

• Completing the square

What are the x-intercepts of the quadratic equation?

• x = -1 and x = -3

• x = -2 and x = -4

• x = 2 and x = 4

• x = 1 and x = 3

How do you find the x-coordinate of the vertex?

• By finding the y-intercept

• By using the quadratic formula

• By setting y to zero

• By averaging the x-intercepts

What is the x-coordinate of the vertex in this problem?

• -2

• -4

• -3

• 0

How is the y-coordinate of the vertex calculated?

• By plugging the x-coordinate of the vertex into the equation

• By averaging the y-intercepts

• By setting x to zero

• By using the quadratic formula

What is the y-coordinate of the vertex in this problem?

• -1

• 1

• 8

• 0

What is the y-intercept of the quadratic equation?

• (0, 6)

• (0, -1)

• (0, -3)

• (0, 8)

Which point is not used to sketch the graph of the quadratic equation?

• Y-intercept

• Vertex

• Slope

• X-intercepts

What is the final step in sketching the graph of the quadratic equation?

• Plotting the points and drawing the curve

• Solving the equation

• Calculating the y-intercept

• Finding the vertex