Graphing Quadratics in Intercept Form

What does the intercept form of a quadratic equation reveal?

• The axis of symmetry

• The vertex

• The x-intercepts

• The y-intercepts

In the equation y = a(x - p)(x - q), what are p and q?

• The y-intercepts

• The coefficients

• The x-intercepts

• The vertex coordinates

How do you determine the x-intercepts from the equation y = a(x - 1)(x + 3)?

• -1 and -3

• 1 and 3

• -1 and 3

• 1 and -3

What is the formula to find the x-coordinate of the vertex in intercept form?

• (p - q) / 2

• (p + q) / 2

• p - q

• p + q

If the x-intercepts are 1 and -3, what is the x-coordinate of the vertex?

• 0

• -2

• 1

• -1

How do you find the y-coordinate of the vertex once you have the x-coordinate?

• By using the formula y = ax^2 + bx + c

• By averaging the y-intercepts

• By setting y to zero

• By solving for y in the original equation using the x-coordinate

What is the next step after plotting the vertex and x-intercepts?

• Solving for the roots

• Calculating the y-intercepts

• Finding one more point and reflecting it

• Drawing the axis of symmetry

In the second example, what are the x-intercepts of the equation y = -2(x + 4)(x + 2)?

• -4 and 2

• 4 and -2

• -4 and -2

• 4 and 2

What is the x-coordinate of the vertex for the equation y = -2(x + 4)(x + 2)?

• -4

• -1

• -2

• -3

How do you find an additional point to plot on the graph?

• By setting y to zero

• By using the vertex formula

• By finding the midpoint of the intercepts

• By solving for y when x is zero