Alg I CP: Chapter 9 Review

Identify the y-intercept

• (-1,9)

• (0,-8)

• (-4,0)

• (0,0)

Identify the vertex

• (-1,-9)

• (0,-8)

• (-4,0)

• (0,0)

Does this parabola have a maximum or minimum?

• Maximum

• Minimum

How many roots (solutions) does this parabola have?

• 3

• 2

• 0

• 1

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• solutions or x-intercepts

Does the quadratic      y = - x² - 2x + 3  have a max/min vertex, and does the parabola open up/down?

• max/ opens down

• min/ opens up

• max/ opens up

• min/ opens down

What is the vertex of this quadratic equation?

y = 2(x + 2)² + 5

• (-2,5)

• (2,5)

• (5,-2)

• (-5,-2)

Where is the axis of symmetry for this parabola?

• x = −1

• x = 0

• y = 3

• x = −3

How do you know if a parabola has a minimum vertex?

• When a is positive there is a minimum

• When a is negative there is a minimum

• When all the numbers in the equation are negative there is a minimum

• When all the numbers in the equation are positive there is a minimum

Which best describes the vertex of a parabola?

• Any point on the parabola.

• A point on the x-axis.

• The highest or lowest point of a parabola

• A point on the y-axis.