1.1 & 1.2 Graphing Quadratic Functions

What do we call the graph of a quadratic function?

• parabola
• linear
• cubic
• sinusoidal

What is the vertex of this parabola?

• (−1, 3)
• (−3, 11)
• (−2, 5)
• (0, 5)

What is the y-intercept of this parabola?

• (−1, 3)
• (−3, 11)
• (−2, 5)
• (0, 5)

What are the x-intercepts of the parabola?

• (1, 0) and (5, 0)

• (3, 0) and (−5, 0)

• (3, 0) and (0, 0)

• (−6, 0) and (1, 0)

What are the x-intercepts of the following quadratic function?

 $y=-\left(x-6\right)\left(x-2\right)$  

• x = −6 and x = −2

• x = 6 and x = −2

• x = 6 and x = 2

• x = −6 and x = 2

Where is the axis of symmetry for this parabola?

• x = −1
• x = 0
• y = 3
• x = −3

What is the formula above primarily used for?

• Finding the axis of symmetry and the x-coordinate of the vertex from standard form

• Finding the x-intercepts from intercept form

• Finding the vertex from vertex form

• Finding the vertex from intercept form

What is the vertex of y= x² - 8x + 14 ?

• (2, 4)

• (−4, −2)

• (4, −2)

• (−2, 4)

How do you know if a parabola has a minimum?

• 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

What is the parent function of a quadratic equation?

• f(x)=x

• f(x)=x²

• f(x)=ax²+bx+c

• f(x)=a(x-h)²+k